TOPIC: AUTOFOCUS
Pandemic camera
8th September 2024Back at the end of 2019, I acquired a Canon EOS 90D, possibly the swansong for mid-range Canon SLR cameras. Much effort is going into mirrorless cameras, yet I retain affection for SLR cameras because of their optical viewfinders. That may have been part of the reason for the acquisition, when I already had an ageing Pentax K5 Mark II. Buying SLR cameras is one way to keep them in production.
Little did I know what lay ahead in 2020 at that stage. Until recently, this was not to be a camera that travelled widely, such were the restrictions. Nevertheless, battery life is superb and handling is good too. The only absence is not having a level in the viewfinder like the Pentax K3 Mark III or maybe any mirrorless camera.
The newer file type of CR3 caught me out at first until I adjusted my command line tooling to deal with that. File sizes were larger as well, which has an impact on storage. Otherwise, there was little to change in my workflow. That would take other technological changes, like the increasing amount of AI being built into Adobe software.
Outdoor photography is my mainstay, and it excelled at that. The autofocus works well on its 24 to 135 mm zoom lens, except perhaps from focussing on skyscapes at times. Metering produced acceptable results, though it differed from the Pentax output to which I had become accustomed. All in all, it slipped into a role like other cameras that I had.
Throughout 2020 and 2021, it provided the required service alongside other cameras that I had. The aforementioned Pentax remained in use, like an Olympus and another Canon. Overseas travel curtailed horizons, so it was around local counties like Cheshire, Derbyshire, Staffordshire and Shropshire. In September 2020, it travelled to Llandudno in North Wales, an exception to the general trend of English hikes and cycles.
Since then, it has been superseded, though. A Pentax K3 Mark III made it into my possession to become my main camera, returning me near enough to my pre-2020 practice. Curiosity about Canon mirrorless options added a Canon EOS RP and a 24 to 240 mm zoom lens. That has shorter battery life than is ideal, and its level is not as helpful as that on the Pentax K3 Mark III or the aforementioned Olympus. If anything, it may get replaced while the EOS 90D remains. My getting a new base in Ireland means that it has gone there to save me carrying a camera there from England. That should give it a new lease of life.
EVF or OVF?
22nd December 2019In photography, some developments are temporary fads, while others create enduring changes. Special effects filters and high dynamic range techniques generated excitement before their usage became more restrained. The same applies to most image processing techniques, as good taste eventually prevails. Some developments, however, signal more substantial shifts.
The biggest example of the latter is the move away from film photography to digital image capture. There still are film photographers who largely depend on older cameras, since very few are made any more. While my own transition came later than others, I hardly use film any more, and a lack of replacement parts for cameras that are more than fifteen years old only helps to keep things that way. Another truth is that digital photography makes me look at my images more critically, which helps me improve.
Also, mobile phone cameras have become so capable that the compact camera market has shrunk dramatically. In fact, I gave away my Canon PowerShot G11 earlier this year because there was little justification in hanging onto it. After all, it dated back to 2010 and a phone would do now what it once did, though the G11 did more for me than I might have expected. Until 2017, my only photos of Swedish locations were made with that camera. If I ever was emotional at its departure, and I doubt that I was, that is not felt now.
If you read photography magazines, you get the sense that mirrorless cameras have captured a lot of the limelight, and that especially is the case with the introduction of full frame models. Some writers even are writing off the chances of SLR's remaining in production, though available model ranges remain extensive despite the new interlopers. Whatever about the departure of film, the possible loss of SLR's with their bright optical viewfinders (OVF's) does make me a little emotional since they were the cameras that, so many like me aspired to owning during my younger years and the type has served me well over the decades.
Even so, I too have used mirrorless cameras and an Olympus PEN E-PL5 came into my possession in 2013. However, I found that using the screen on the back of a camera was not to my liking and the quality of mobile phone cameras is such that I no longer need any added portability. However, it needs to be remembered that using a Tamron 14 to 150 mm zoom lens with the body cannot have helped either. Wishing to sample a counterpart with an electronic view finder, I replaced it with an Olympus OM-D E-M10 Mark III earlier this year and have been getting on fine with that.
The camera body is compact, yet handles like an SLR. I turned off the automatic switching between viewfinder and screen because I found it distracting. I prefer to switch between them manually. Getting used to the electronic viewfinder (EVF) took some time, but adding a spirit level overlay proved both useful and educational. The camera produces images with strong greens and blues, which suits me since I like both colours. The 16.1 megapixel sensor creates smaller files that upload quickly to back-up services. My Tamron lens works flawlessly, and keeping this lens was a key reason I stayed with Olympus despite a shutter failure on my previous camera. The repair was done efficiently and at a reasonable price.
Despite the quality of the new Olympus, it has not replaced my Canon EOS 5D Mark II and Pentax K5 II SLRs. The Olympus has a much smaller frame. In January, I bought a new Sigma 24 to 105 mm zoom lens for the Canon after my older lens developed a fault that could not be fixed. The new lens performs well and produces impressively sharp images. However, the full frame Canon setup is heavy, even when used handheld. This is why the Pentax remains my choice for travelling abroad. Both the Canon and Pentax offer brighter viewfinders, which I value. Therefore, the OM-D complements rather than replaces my other cameras.
Although I can work with electronic viewfinders (EVF's) if single-lens reflex cameras (SLRs) become obsolete, I plan to use mainly SLRs for now. Canon recently launched a new enthusiast model, indicating ongoing interest in SLRs. Canon appears to envision a hybrid approach where using the screen on the back of the camera might provide faster autofocus or other functions, while the optical viewfinder (OVF) allows traditional operation. This makes me wonder if future cameras might include viewfinders that switch between EVF and OVF modes. This idea might be both far-fetched and fascinating, but other unforeseen possibilities might exist. One thing is certain: we live in a time of rapid change.
A display of brand loyalty
12th July 2013Since 2007, I've used a Pentax K10D DSLR as my main camera. It has travelled with me extensively, capturing over 15,000 images and serving reliably. Though its autofocus isn't the fastest, this doesn't matter for my typical subjects: landscapes, architecture, flora and transport (stationary buses and trains, for instance). Any slight underexposure in photos can be easily fixed since I shoot in DNG format, which preserves all raw image data. The camera has performed so well that I've found it difficult to justify buying a new SLR.
Lately, I have been looking at processed photos and asking myself if time has moved along for what is not far from being a six-year-old camera. At various times, I have been looking at higher members of the Pentax while wondering if an upgrade would be a good idea. First, there was the K7 and then the K5 before the K5 II got launched. Even though its predecessor is still to be found on sale, it was the newer model that became my choice.
My move to Pentax in 2007 was a case of brand disloyalty, since I had been a Canon user from when I acquired my first SLR, an EOS 300. Even now, I still have a PowerShot G11 that finds itself slipped into a pocket on many a time. Nevertheless, I find that Canon images feel a little washed out before post-processing, and that hasn't been the case with the K10D. In fact, I have been hearing good things about Nikon cameras delivering punchy results, so one of them would be a contender were it not for how well the Pentax performed.
So, what has my new K5 II body gained me that I didn't have before? For one thing, the autofocus is a major improvement on that in the K10D. It may not stop me persevering with manual focusing for most of the time, but there are occasions the option of solid autofocus is good to have. Other advances include a 16.3 megapixel sensor with a much larger ISO range. The advances in sensor technology since when the K10D appeared may give me better quality photos, and noise is something that my eyes may have begun to detect in K10D photos even at my usual ISO of 400.
Some features will not get used, though. While I rely on Live View with my PowerShot G11 due to its poor optical viewfinder, I rarely use it on the K5 II with its bright, sharp viewfinder, especially after noticing unreliable autofocus when using it (though manual focusing should work fine). By default, the screen stays on constantly, which irritated me as an optical viewfinder user, so I consulted the manual to turn it off. Similarly, I quickly abandoned the image level display. However, I've kept the horizon autocorrection feature enabled, as it helps fix the crooked horizons that often result from handheld shooting.
The K5 II may have a 3" screen on its back, but it has done nothing to increase the size of the camera. If anything, it is smaller than the K10D, and that usefully means that I am not on the lookout for a new camera holster. Not having a bigger body also means there is little change in how the much camera feels in the hand compared with the older one.
In many ways, the K5 II works very like the K10D once I took control over settings that didn't suit me. Both have Shake Reduction in their camera bodies, though the setting has been moved into the settings menu in the new camera, when the older one had a separate switch on its body. Since I'd be inclined to leave it on all the time and prefer not to have it knocked off accidentally, this is not an issue. Otherwise, many of the various switches are in the same places, so it's not that difficult to find my way around them.
The K5 II includes other changes, like a mode dial lock, but I'm familiar with this feature from Canon EOS cameras, so it doesn't feel like a downgrade. The exposure compensation button has been relocated to the top of the camera, making it easier to find and use; I'm using it more than I did on the K10D. Since I also use this feature on my G11, I'm applying similar experimentation to the K5 II. Next to it is a new ISO button, which I plan to test to see how it performs.
My main criticism of the K5 II is its cluttered menu system. The K10D's long scrollable lists have been replaced with multiple tabs that eliminate on-screen scrolling. However, I think this fragments the interface too much and makes navigating settings more intimidating for less technical users. Essential settings remain accessible; I continue using RAW DNG files as usual, though JPEG and Pentax's proprietary RAW format are also available. After initially forgetting to set the date, I quickly fixed this. Similarly, I disabled the default setting that stores files in date-based folders, instead directing everything to a single PENTX directory to match my workflow. Recently, I discovered the option to add photographer and copyright information to image file metadata. This seems particularly useful given proposed U.K. legislation that would weaken automatic copyright protections, even though most photographers oppose these legal changes.
A camera's true value lies in the quality of its images, and I'm pleased with what the K5 II produces. The larger file sizes mean fewer images fit on a memory card, though increased SDHC capacities help offset this, even as I avoid excessive shooting. While using the camera, I was surprised to find apertures like F/14 and F/18, as I was used to values like F/11, F/13, F/16, F/19, and F/22. Most traditional values remain available, so there's not a complete departure from convention. Similarly with shutter speeds, I noticed 1/100 and 1/160 where I expected only 1/90, 1/125, and 1/250. These additional options provide more flexibility and potentially make achieving correct exposures easier, though what constitutes "correct" should be determined by the photographer, not the camera's algorithms. So far, I've mostly used ISO 400, except for some evening woodland testing shortly after getting the camera.
While I've been meaning to share my thoughts on the K5 II since acquiring it a few months ago, I needed time to organize my ideas. Initially, I felt overwhelmed by how much there was to say, even more than what you've read here. There are still features to explore, like white balance adjustments and their effect on image quality. After discovering its shake reduction was switched off, I'm also reconsidering my K10D, especially since this might explain the quality issues I mentioned earlier. Using my tripod more consistently would be another improvement. Clearly, I have many more photographic explorations ahead.
Sometimes, a firmware update is in order
28th February 2011After a recent trip to Oxford, I have started to mull over adding a longer lens (could make more distant architectural detail photos a possibility) to complement my trusty Sigma 18-125mm f/3.8-5.6 DC HSM zoom lens that now is entering approaching its third year in my hands. While I have made no decision about the acquisition of another lens, there are some tempting bargains out there, it seems. However, the real draw on my attention is the lack of autofocus with the aforementioned Sigma, and I now find it difficult to believe that I was blaming the manufacturer for not keeping up with Pentax when it really was the other way around. A bit of poking around on the web revealed that all that I needed to do was download a firmware update from the Pentax website. While being slowed down by the lack of autofocus cannot have done bad things for my photography, I still wonder at why I didn't try updating the camera for as long as I have.
In the file for updating my K10D, there was a README file containing the instructions for carrying out the update with the included binary file that was set to take the camera from version 1.00 to 1.30 (hold down the Menu button while starting the camera to see what you have). In summary, both files were copied onto an SD card that was inserted into the camera and it turned off. The next step was to power up the camera with the menu button held down to start the update. To stop erroneous updates, there is an "Are you sure?" style Yes/No menu popped up before anything else happens. Selecting Yes sets things into motion, and you have to wait until the word "COMPLETE" appears in the bottom-left corner before turning the camera and removing the card. Now that I think of it, I should have checked the battery before doing anything because the consequences of losing power in the middle of what I was doing would have been annoying, especially with my liking the photographic results produced by the camera.
Risk taking aside, the process was worth its while, with HSM now working as it should have done all this time. It seems quiet and responsive too from my limited tests to date. Even better, the autofocus doesn't hunt anywhere near as much as the 18-55 mm Pentax kit lens that came with the camera. The next decision is whether to stick with my manual focussing ways or lapse into trusting autofocus from now on, though my better reason is to stick with the slower approach unless the subjects are fast. Now that I think of it, train and bus photos for my transport website have become much easier, as have any wildlife photos that I care to capture. Speaking of the latter brings me back to that telephoto quandary that I mentioned at the beginning. Well, there's a tempting Sigma 50-200 mm that has caught my eye...
Taking a camera on a walk…
24th July 2007On Saturday, I happened to be in a branch of Jessops only to overhear a salesman emphatically state that you don't buy a camera for its specifications but for the photos that it produces. While his tone of voice was a touch condescending, and he seemed to be putting down a DSLR, he was essentially right. Nevertheless, the specifications do help you get the images, so they have to be seen in that light.
For instance, having on-board sensor cleaning may save you from having either to clean the thing yourself or send the camera away for the professionals to do the needful, a much safer option in my view. And there may be occasions where image stabilisation is very useful, low light wildlife photography for instance. Yes, there are features that I consider surplus to requirements, like live viewing and movie capture, and that is very much due to my buying cameras to make photos. The salesman in question would surely have agreed...
Field Testing in the Lakeland Fells
Sunday saw me head to the Lakeland Fells for some walking and a spot of testing of my new Pentax K10D. The details of the walk itself are not for here but for my hillwalking blog and that is where you will find them. While making my way from Crewe to Windermere, I perused the manual looking particularly for information pertaining to functions that I actually use, I should really have done this beforehand, but distractions meant that I hadn't got around to it. I had to wade through something designed for a new SLR user before I got to what I consider the important stuff. Though this may be a bit irritating, I can understand and accept why they do it this way; we were all new users once, and they are hardly likely to want to know about things like aperture priority, raw file capture, ISO control and such like straight away.
First Impressions of the Pentax K10D
What do I think of it then? Let's start with first impressions. It is definitely smaller than the Canon EOS 10D it accompanies in my possession. That said, it is not too small and there is a decent grip hosting the shutter release button and the camera on/off switch. It also feels well-assembled and reassuringly weighty, an important consideration given that it will see the outdoors a lot. A discussion of the features most relevant to me follows.
Power Management and Response Time
On the subject of switching on and off, the camera is set to go into a sleep mode after a second of inactivity, but it reawakens quickly when needed, the trigger being half-depression of the shutter release button. In fact, the camera does reawaken much faster than my Canon as it happens and where the delay is a constant source of some irritation.
Key Controls and Features
Even if it might sound strange, the on/off switch is also used to activate the depth of field preview, something that no SLR should not have. The location may be unusual, but maybe the designers thought that having shutter release and depth of field preview next to each was a logical way to do it. From a camera operation point of view, there is certainly something to that way of thinking.
Behind the shutter release, you'll find a screen that is a reminder of film SLR's. This conveys information such as battery life, number of exposures remaining on the card and exposure details (aperture & shutter speed).
Display and Menu System
Staying on the subject of screens, the one on the back of the camera is larger than that on the Canon. As is customary for these, it allows replay of photos taken and access to the various menus required to control the camera's operation. In comparison to the Canon, which is essentially a one menu affair with a thumb wheel controlling scrolling and an OK button at its centre to perform operations, the Pentax has a more elaborate system of submenus: one each for recording, playback and set-up.
The playback menu is where I found the setting that makes the camera highlight areas of underexposure and overexposure during image playback. This is something that I missed regarding the Canon until I happened upon it. Camera cleaning is located on the set-up menu, and the camera is now set to clean the sensor every time that it is turned on. Why this is not enabled by default is a little beyond me, but the designers might have thought that a vibration from the camera on turning it on could have resulted in a load of support calls. The same submenu also hosts memory card formatting.
File Format and Navigation Options
The recording submenu is where I set the camera to deliver RAW DNG files, an Adobe innovation, rather than the default JPEG's. There are other options like RAW PEF files, Pentax's own format, or RAW and JPEG simultaneously, but my choice reflects my workflow in Photoshop Elements; I have yet to stop the said software editing the DNG files, however.
With all these options, it is fortunate that there is a navigation wheel whose operation uses arrow buttons to get about. While on the subject of the back screen, there are further settings that are accessed with the FN button rather than the Menu one. These include ISO, white balance, shooting mode (single, continuous, timed and so on) and flash. The only setting that I changed out of this lot was to set the ISO to 400; I prefer to feel that I am in control.
Exposure Modes and Controls
Returning to the camera's top plate, the exposure mode dial is on the left-hand side, which is no hardship to me as this is in the same place as on the Canon. There are no scene modes, but the available exposure modes are more than sufficient: fully automatic, program, sensitivity priority, shutter priority, aperture priority, shutter and aperture priority, manual, bulb and external flash synchronisation.
A few of these need a spot of explaining. Sensitivity priority is a new one on me, but it is a consequence of the ability of DSLR's to offer a range of ISO settings; the aperture and the shutter speed are varied according to the ISO setting. Shutter and aperture priority is like manual exposure and is the inverse of sensitivity priority: set both aperture and shutter speed, and the camera will vary the ISO setting. Both of the foregoing assume that you let the camera set the ISO, but my setting the thing myself may have put paid to these functions.
Shutter priority and aperture priority are, as far as I can tell, their usual selves. For all exposure modes, the thumb wheels at the front and back of the shutter release handgrip set apertures and shutter speeds where appropriate, and this arrangement works well.
Metering Options
The focussing mode selector is found on the left of the body, next to the lens coupling. I am used to having this on the lenses themselves, so this is a new arrangement for me and one to which I can easily become accustomed. In fact, it is easy to find it while composing a picture. The modes themselves are manual focus, one-time autofocus and continuous autofocus; the last of these is for focussing on moving objects.
While I could go further, perhaps overboard, with a discussion of the features of this camera, I draw a line at what's here. Yes, it is useful to set the focussing point and activate image stabilisation, but the above are what matter to me and its performance in the photo making department is the most important aspect.
Performance in the Field
That neatly brings me to my appraisal of how it performs. With inspection of the first few images on the review screen, I was a little disappointed to see how dark the foreground was in comparison to the sky. When I brought everything home, as I always do, I found that things weren't necessarily as they appeared in the field. The Pentax more usefully offers histogram review and highlighting of any areas that are either underexposed or overexposed. It is these functions that I will be using in reshooting decisions while out and about with the Pentax, and the same can be said for how I currently use the Canon.
In fast changing lighting, the AE lock technique was a bit irritating, yet I am certain that I will get better at it. The autofocus doesn't always lock onto the subject, especially in tricky lighting, so manual focussing is a definite necessity and is more useful more for landscape photography, in fact. Nevertheless, the autofocus did do well most of the time, and my Sigma lenses have done worse things on me.
Conclusion
Overall, I'm satisfied with the K10D and plan to continue using it. My recent excursion yielded some quality photographs, which, as the Jessops salesperson would agree, is the ultimate purpose of any camera.