Archive for July, 2007

Amateur Photographer reviews…

Amateur Photographer seem to have had a run of reviews recently. First off were the Olympus E-410 and E-510 that they seemed to like. Then, they moved onto the Ricoh Caplio GX100 and they seemed to like that too, though they did say that quality wasn’t up to SLR standards. But then again, it is a compact and that might be expecting a bit too much. This week, Paint Shop Pro comes under the spotlight as does Epson’s V350 scanner. I have yet to read these but I have been engaging in a spot of equipment acquisition anyway. My CanoScan 5000F scanner has been usurped by Epson’s Perfection Photo 4490 and very happy I am with it too. The quality of the scans that I have been doing of prints has been good and the presence of an on/off switch is a creditable one. None of the other scanners that I have had possessed it and having to plug something in and out from the power socket is inconvenient to say the least. I have also gone and got myself a new DSLR. Seeing Pentax’s K10D going with a 18-55 mm lens for £499 at Jessop’s overrode my better reason and put paid to ideas of purchasing any other electronic goods for the rest of this year. It’s an award-winning gadget and Photography Monthly’s Will Cheung seemed to get on fine with it. Which Digital Camera said it was heavy but it has to stand up to use in the great outdoors. The sensor may be a 10 megapixel affair so this will be an upgrade to my Canon EOS 10D; that has a sensor in need of clean right now (I plan to get it done by the professionals) and every time that I want to use an image that it has made, Photoshop’s healing brush has to be pressed into service. Pentax does boast about all of the seals that it has added to the K10D, a good thing if they cut down on the dust entering the camera. And if dust does get in, the sensor cleaning feature will hopefully see it off from the photos. Image stabilisation, another value adding feature, is also there and may prove interesting. Strangely, there’s some motion picture capture as well and I hope that it doesn’t get the EU coming after me to collect retrospective camcorder duty. In any case, it’s not a feature that I really need and the Live View functions on the equivalent Olympus offerings fall into the same category anyway. It’ll be interesting to see how the K10D performs and it’s a change from the Canon/Nikon hegemony that seems to dominate digital photography these days.

Pentax K10D

Update: I have since perused the current issue of Amateur Photographer and seen that Paint Shop Pro suffered from performance issues on computers that worked fine with Photoshop. Otherwise, it compared well with Adobe’s offerings even if the interface wasn’t seen to be as slick. Epson’s V350 was well received though it was apparent that spending more got you a better scanner but that’s always the way with these things.

The power of pipes

One of the great features of the UNIX shell is that you can send the output from one command to another for further processing. Take the following example for instance:

ls -l | grep "Jul 12"

This takes the long directory file listing output and sends it to grep for subsetting (all files created today in this example) before it is returned to the screen. The | character is the pipe trigger and you can have as many pipes in your command as you want though readability may dictate how far you want to go.

A feast of plugins

Themed Login

Here’s a useful idea: get your blog login page to look like it’s part of your blog. It does work well on my hillwalking blog but you do have to watch how it behaves with whatever theme you are using. Strangely, I couldn’t get it to work on my offline blog, the development mirror of what you see online. The ability to set what page is displayed after logging in or logging out is an especially useful inclusion.

My Category Order

My Link Order

My Page Order

These sound like really good ideas: being able to control the running order of things on your blog sidebar is a good thing. What scuppered my using them is that you need widgets turned on for the effect to work and i have seen issues with how ID’s have been set when things are widgetised.

An inappropriate use of JavaScript

I have seen a web application that displays thousands of records in a scrollable table (please bear with me, there is a very good reason for this). from the appearance of the table, it would be reasonable to assume that the table is generated by the server and output directly to the screen but this isn’t the case. What actually happens is that the server more or less outputs JavaScript code that is then executed. This takes the form of large arrays that are slotted into the DOM as the contents of the required table by a JavaScript function. With the large amounts of data involved, this means that the browser fully loads the client CPU while the JavaScript processing takes place, something that takes up to a minute to complete. Admittedly, the browser is IE6 but this was all on a PC with a 2.53 GHz Pentium 4 and 512 MB of memory. Getting the server to deliver standards-compliant (X)HTML for what is needed in the first place seems a much, much better approach to me.

WordPress function dossiers

WordPress.org does host references to functions used by WordPress, a very useful offering for those among us maintaining WordPress blogs all by ourselves. Here are two places to go:

Function Reference

Template Tags

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