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by Jon

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14

I think step number one is to find something more interesting than crumbs on your keyboard to shoot. And I don't mean that in a flippant way. Get away from the computer and stop taking test shots — start taking real photographs which you find interesting. Take those photographs back and do exactly what you've been doing: play around and make them look as ...


9

As you can see right on the main CHDK wiki - "Temporary – No permanent changes are made to the camera." You also can find very detailed information in the FAQ here. Basically - Yes you are hacking your camera. So things can happen that the original manufacturer did not intend(if this wasn't true, you wouldn't want it anyways). But the chances of any ...


8

I don't really know much about CHDK, outside of that it lets you program P&S cameras. When it comes to ISO, though, the story is rather tricky. It may be possible to program ISO down to 15 with CHDK, but it may not really do you any good. There are "real" ISO settings, and there are "artificial" ISO settings. A real ISO setting would be something like ...


5

Using intervalometers to create time-lapse photography is more of a research tool than it is for artistic expressions, but both can coincide, and often do. Time-lapse allows us to see things beyond the basic perspective of human perception. Much like the eye can only see visible light, but we all know that that range extends far beyond that, into the IR and ...


4

CHDK doesn't run on any of the Canon DSLRs, so I'm afraid that's out (though many of the benefits that it gives you are probably built in). You can get an IR remote that will actuate the shutter either immediately, or after a 2 second delay (so you have time to put the remote in your pocket for a self-portrait). They are pretty cheap on amazon (~$15). It ...


4

Essentially it is a nice feature if you don't want to hang around your camera. The camera snipes away for some hours and you don't have to care except for the sorting afterwards. combine with long-time-exposure and try to create a nightsky-shot (circling around polar star in the norther hemisphere) ... or even a 24h shot of an location, like this guy here: ...


4

I've had no problems with CHDK on a A430 doing timelapses over a day or two. I've also used it to enable raw capture. I would concur with cmason's use of the phrase "alternate firmware". It's still firmware, it just doesn't replace the factory firmware. There are warnings on the CHDK website indicating that CHDK may make it possible for you to request ...


4

CHDK is alternate firmware that is loaded on your SD card. It does not alter the factory firmware at all. When you start up your camera it loads this alternate firmware. When you are done with it, or don't care for it, simply put in an empty SD card and turn off/on your camera and it loads the factory firmware, just the way you left it.


3

Apparently there is a more recent build of CHDK for this type of camera that can be found on the forums: http://chdk.setepontos.com/index.php?topic=7864.0 Downloaded & installed it and works fine now. The newly generated DNGs are free of dead/stuck pixels now...


3

This doesn't add anything new beyond jrista's answer, but to summarize: probably what is happening when you select those ISOs is that the camera overexposes and then divides the numbers by 2 (or whatever). So you lose IQ fairly rapidly. I would suggest looking up on CHDK website exactly how it achieves those low ISOs. I'm certainly curious, so do report ...


3

These problems were encountered when trying to compensate from the bright sunlight to the dark of night for sunset and sunrise events. There've been a couple of "sunset" scripts created long ago to circumvent these problems, as well as trying to adjust for exposures when the light levels are far too low and the camera's own exposure meter can no longer ...


3

I've also tried to find a CHDK-like software for Pentax, probably the best Pentax firmware hack project is Pentax Hack. They were able to decrypt several Pentax firmwares, and modify a few things, like turning on debug mode. Although the project supports several Pentax DSLRs, unfortunately it does not support K-x.


3

If you shoot video you'll want to look into the Magic Lantern firmware. It's still very much a WIP but they've added manual audio and meters and have zebras on the to-do list. http://magiclantern.wikia.com/wiki/Magic_Lantern_Firmware_Wiki


3

Generally, you press the DISP button to cycle through the various display options, one of which is off. No experience with CHDK, but that's how regular Canons work. Editing much later to add: I have since installed CHDK on my S90, and the DISP button works the same as with the stock firmware. So simply pressing it should cycle you through basic display, ...


3

I did a timelapse with a Canon A420 and CHDK, but I just checked and that camera's only 39mm equiv at the wide end, even though it does have the other features you require. However, I can confirm that CHDK with an intervalometer script worked very well. Here's a timelapse movie I did with this setup: http://www.youtube.com/watch?v=iJXGGwZ2ZCo Looking at ...


2

It is possible, but there is a limit to the lowest ISO your camera supports based on the sensitivity of the sensor. Every 1/2 ISO level requires 2x the light. So ISO 15 would roughly be 2.5 stops darker compared to ISO 100. So while lower ISO would help (in theory), lower-iso + an ND filter would give you a lot more options to work with.


2

IEEE recently released a very interesting article on this very subject, I thought some of you out there might find it interesting, and it does give alot of good ideas as to what you can do with the CHDK. They say, the real power is in writing your own scripts. Apparently it can do motion detection, which will leave to some absolutely stunning pictures. Makes ...


2

I've only used a few features. I've found the intervalometer and motion sensing scripts useful. I've used the RAW feature, and realized most P&S cameras don't include it because their memory can't handle it (unless you like waiting 10 seconds to take another photo). I also liked the ability to optically zoom while taking video.


1

Canon publishes an SDK for interfacing with their EOS cameras called EDSDK. In order to use it, you must live in the US, register through their website and fill out an application. If they accept your application (which they usually do), you will be given a link to download the SDK for free. Canon also accepts applications from non-US residents through ...


1

Since you are talking about CHDK, I'll assume you are using a Canon camera. The software disc that shipped with your camera includes a program call EOS Utility that enables your camera and computer to communicate. Part of the functionality included in EOS Utility is the ability to shoot tethered. This allows you to adjust many settings in the camera using ...


1

You can make a wired remote shutter release quite easily from a 2.5mm audio plug and a couple of switches, a 5 minute project suitable anyone. After I built mine, found this diagram. (As i didn't initially have a diagram I just tested all 3 pairs until I found the correct one) Before I added the switches, I just dropped the exposed ends of the wire into a ...


1

If you're new to photography, I bet you'll enojoy the custom bokeh shape DIY =) Easy to do, even easier to use. You didnt mention which lens you have. This DIY will give best results with lenses having around f/2.0. You can use it with 18-55 Kit lens as well, in that case, the shape you cut must be smaller. ...


1

Having only tinkered with CHDK a little bit, I imagine other answerers will come up with lots of interesting features to mention. That said, the one that strikes me as a single feature that's likely the most powerful is just the very fact that one can write scripts for it, to do (almost) whatever you might want to do. Granted, one has to have (or build up) ...


1

Bracketing is really nice. I just set it to bracketing on multi-shot-mode and only have to switch there. Long-time exposure for night-shots. Don't know how "known" that is. RAW is obviously known.



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