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Can I shoot a photo with my DSLR without the lens on?
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24 votes

There are two possible interpretations of this question: Can you trigger an exposure with the lens removed: Answer: It's camera specific. Try setting the camera to manual mode. On my Nikon D80, it ...

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Tricks for a good "jumping" picture?
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24 votes

Probably the most important factor: Shoot from a low angle. If you can get low enough that you can see the sky under the person, it more clearly exaggerates that they are in the air. Alternatively,...

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Are full-frame cameras bad for sports photography?
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22 votes

One aspect of this comparison that has not been mentioned is the fact that crop-sensor cameras are generally faster for a given price point. The 7D shoots at up to 8 Frames/Sec, the 5D manages 3.9 ...

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Are infrared DSLR conversion companies safe? What about DIY infrared conversion?
12 votes

I've done my own conversion on a Nikon D80, including cutting my own rectangular filter from a hoya 720 nm 77 mm round filter. I did something a bit unusual and went so far as to remove the IR filter ...

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What caused dark areas around bright light in this cityscape shot?
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11 votes

If you have the RAW file from the shot, absolutely. Just pop it open in what ever RAW processor you use. Active D-Lighting basically applies a slight HDR-like effect. The effect should only be ...

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How many images can a Lightroom catalog really handle?
11 votes

I've got a lightroom instance with 211,489 images in it. It's certainly a bit slower than sub 10K collections, but it is usable. It does take a long time to completely start, though, since LR seems ...

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Is there a free visual similarity image local hard drive search?
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10 votes

ImgSeek is an open-source project that claims to do this. DigiKam is apparently trying to add similar functionality. Pixcavator is not open source, but there is a 30 day free trial. If you're the DIY ...

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Why would I want to select an autofocus point?
10 votes

The additional AF points are essential for Action/Bird photography. I have enough trouble keeping fast-moving birds within the viewfinder, let alone keeping the center AF point over the bird. As it ...

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How did Suren Manvelyan create the macro pictures of eyes?
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9 votes

It's not that hard. You just need a good macro lens, and a patient subject. In this case, it looks like he is exaggerating the texture of the iris with hard side-lighting, which leads to the starkly ...

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What is the best choice of filter to modify a DSLR for infrared photography?
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9 votes

You basically have three options: Hot mirror in front of sensor (e.g. stock camera) Only good for visible light, IR exposures are possible with a lens-mounted IR filter, but exposure times are on ...

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Why aren't there any cooled CCD sensors to reduce noise?
8 votes

It boils down to power, and lack of market demand. There are specialty cooled-sensor cameras out there. They're generally just used for astrophotography. The cooler that is used in almost all cooled ...

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Is there any way to rig/hack the aperture wide open on a Nikon G lens so I can use it on a 35mm film camera?
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7 votes

Bjørn Rørslett solved this problem by just jamming a few match-sticks into the aperture control lever of a lens link It's crude as hell, but apparently it worked well enough for a weekend. Really, ...

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What is the technical term for the time taken to see the final image on an IP security camera's screen?
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6 votes

The word you are looking for is Latency. Latency is a measure of time delay experienced in a system, the precise definition of which depends on the system and the time being measured. Latencies may ...

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Why do they do sketches in Court?
5 votes

It's because a lot of courtrooms don't allow cameras/photography. Federal Rule of Criminal Procedure 53 states, "Except as otherwise provided by a statute or these rules, the court must not ...

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Why can't I take a photo in dark with auto focus, manual mode?
5 votes

It's the auto-focus mode: When in AF-A or AF-S, the camera will not shoot until it has achieved a focus-lock. Therefore, when you are in the dark, where the AF cannot work, it never locks, and ...

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How to remove sand from the lens cap?
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5 votes

What kind of lens cap? A lot of Canon lens caps can be taken apart very easily, which is really the most effective way to clean it. Some Nikon caps (and all center-pinch caps) are more involved to ...

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How do I "shoot from the hip" in street photography?
5 votes

I "shoot from the hip" pretty extensively using my 5DII. I leave it on Program-Auto most of the time, sometimes Tv, so you can look like you are just gesticulating or waving your arms (with the ...

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How do you shoot lighting designs in a studio?
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4 votes

If you just need to power a light that's normally intended for a permanent installation, there's not much too it. For ease of use, I'd just recommend some wire-nuts: And a cut-up three-prong ...

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What's a fairly simple way of taking a photo through a microscope?
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4 votes

If you have a SLR, it's as simple as pulling one of the microscope eyepieces, removing the SLR lens, and pointing the camera lens-box at the eyepiece hole. You generally need to hold the camera about ...

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Can a cheap DX battery damage my camera?
4 votes

Maybe, but Probably Not Third party batteries vary in quality and capacity, but their actual danger is massively exaggerated. Furthermore, the Chinese battery failures generally happen when the ...

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Why is my Canon Powershot A1100 focusing only on the bottom part of scenes?
4 votes

It looks like one of the elements in the lens is physically misaligned to me. The road in in focus to a distance well past the church steeple, so the steeple should be in focus, but it is not. This ...

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How does altitude affect camera and lenses?
4 votes

The camera will be fine. It's worth noting that some camera components have trouble at extreme altitudes. In my case, the place I work flew a Canon 30D on a high-altitude balloon, which makes it up ...

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Is there good free software for editing Canon RAW files?
4 votes

Don't forget the De-Facto raw conversion utility DCRaw. It's very user unfriendly (read: command line only), but most available RAW converters are at least somewhat based on it, since it's open ...

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Filtered water soaked Leica D-Lux 4 repair?
3 votes

This mostly depends on what you define fairly mechanically inclined as. I do electronic design and assembly professionally, and have a hobbyist interest in dissecting and repairing cameras and lenses ...

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What does "MECHA DEVICE SERVICE" mean in a Sony repair listing?
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2 votes

I would assume that it's "mechanical device service", and probably just an internal code for tracking the cost of the labor to do the service.

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Utilities for comparing different JPEG compression engines?
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2 votes

I'm basically going to answer my own question: No. There are no decent facilities for comparing JPEG compression libraries. Additionally, I did some further experimentation which effectively ...

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How are very high resolution images displayed on low resolution monitors?
2 votes

Either only a portion of the image is displayed, or the imaged is scaled down before being displayed on the monitor. See the wikipedia page on Image Scaling for more information on how scaling is ...

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How to clean an actual CMOS sensor? (Not the IR low pass filter)
2 votes

I Suspect very, very strongly that you're not trying to actually clean the silicon surface, but merely the cover-glass that is integrated into almost every CCD/CMOS sensor available. If the sensor it ...

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Are there any ways to combat "sluggish battery syndrome"?
2 votes

Unfortunately, the fact that batteries perform poorly at low temperatures is a fundamental characteristic of most battery chemistries. As such, the only real solution is to either keep the battery ...

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Is blu-ray a good long term storage option for photos?
2 votes

This doesn't speak to your exact question, but if you are backing up a lot of files, I would highly recommend creating PArchive parity files for the data you back up. Basically PArchive files (...

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