Questions tagged [electronics]

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Do Electronic Viewfinders Record Data?

I saw this post: How does an electronic viewfinder work? But I am more interested if the electronic viewfinder on a digital camera or smartphone saves image data before it is captured and written to ...
AndroidUser558's user avatar
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1 answer
79 views

How do older AF Nikkor CPU lenses measure the selected aperture to provide data for the camera?

I have a semi-faulty AF Nikkor 50mm ƒ/1.8 lens (early non -S or -D model, with the focus distances in a little window) that has been having issues communicating with the camera. Both my F-801 and my ...
Bruno Philipe's user avatar
2 votes
3 answers
1k views

Hot shoe pinouts / connections - do any of them provide power?

I've got an idea for a little project that uses the hot-shoe on top of the camera - I'm aware that the standard centre pin / foot connection is a universal thing but it would be useful if I could take ...
John U's user avatar
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1 vote
1 answer
50 views

How does the Canonet GIII electronically control its mechanical parts?

In A mode, the Canonet GIII prevents the shutter from being released unless the metering is within a certain range (i.e. the available range of apertures it can set). How does it do that? And how does ...
Daniele Procida's user avatar
0 votes
1 answer
372 views

Affordable camera for a macro photography

Which cheap camera fits better for taking a macro photos of static objects: PCB boards, electronic chips, various small hardware? Basically, the camera will be fixed on a copy stand. I'm considering ...
triwo's user avatar
  • 119
3 votes
1 answer
1k views

Canon EOS 50D forgets date every time battery is changed

Every time I remove the battery of a Canon 50D, even if it's just for a second, the camera forgets the current date and when turning it back on after the battery change I have to set the date again. ...
confetti's user avatar
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6 votes
5 answers
3k views

Is it okay to not use the spare battery?

I got myself an Nikon D80. I have a spare battery for it. EN-EL3e. What I am fearing is. I don't use that battery and keep it as a backup. I will probably forget about it for days and charge it only ...
Delta Oscar Uniform's user avatar
0 votes
1 answer
367 views

Tamron 24-70mm F/2.8 battery drain issues

Ok, this is a bit of a strange thing. Bear with me please. The camera is a Canon 6D and the lens is a Tamron 24-70mm F/2.8 VC (first generation, not the G2). When I have this lens on my camera and ...
confetti's user avatar
  • 881
2 votes
4 answers
140 views

How careful do I need to be about using hot lights in a private residence?

If I use tungsten hot lights for a video in a private residence (specifically a condo unit) in Canada, how concerned should I be with tripping the circuit breaker? The specific light kit I am ...
juil's user avatar
  • 324
2 votes
2 answers
81 views

Multiple use of Electric contacts cleaner

I have a reflex canon 77d, in one beautiful day the "ok" button stopped to work suddenly. I bought an electric contacts cleaner, i applied the spray and it returned to work normally but after 2-3 days ...
FrankTan's user avatar
  • 123
3 votes
1 answer
817 views

Spilt Isopropyl alcohol on camera, now it doesn't turn on

I have 99.5% Isopropanol that I am using for cleaning electronics and optics(I specifically ordered it from my local electronics specialist; it is no knock-off, it is genuine pure IPA for a ton of ...
user74200's user avatar
  • 139
-1 votes
1 answer
191 views

What Field of View does an Electronic Viewfinder typically have?

I have an old small HDMI display laying around here and I want to use it to create a primitive electronic viewfinder with 3D printed parts for my DSLR. My design is nearly finished, but I still don't ...
DLCom's user avatar
  • 111
1 vote
4 answers
4k views

Native ISO vs Boost ISO. What kind of amplification corresponds to each of them?

As I understood, there's a native range for ISO in DSLR cameras and a boost mode which is usually a bigger range and contains the native ISO. I'm lost a bit here. Which of the following processes is ...
faf's user avatar
  • 157
0 votes
1 answer
1k views

Measuring SNR of a DSLR from raw image

How can I calculate signal to noise ratio of a DSLR, using raw images? Is it simply whole counts minus dark counts over dark counts?
faf's user avatar
  • 157
5 votes
1 answer
505 views

What do "dark current" and "sensitivity" mean for a camera module?

I am looking at a camera module to be used for a project which deals in shooting frames in dark areas and night conditions. This is a camera used from a circuit board. I have the following light ...
user2104710's user avatar
9 votes
5 answers
6k views

How can I tag my photos with electric compass info giving direction my camera was facing?

I have a survey project where I need to record not only the location, but the direction (bearing and angle of elevation/depression) that the camera was pointing at the time the picture was taken. I ...
Sherwood Botsford's user avatar
7 votes
3 answers
2k views

Will a laser beam damage a non operational CCD?

I am looking for an answer to this question all over the net and can't find any answers. It is clear that a strong laser beam will damage CCD while it is in use(filming), but what about if the camera ...
Mike's user avatar
  • 71
3 votes
3 answers
1k views

DIY motion trigger for use in High Speed Photography?

I am looking to get started in high speed photography and have been looking around at the different motion/sound detectors that are available on the market. I have come to the conclusion that I do not ...
tony09uk's user avatar
  • 195
10 votes
5 answers
789 views

which brand ecosystem is more open for hacking?

I'm a seasoned photographer who used to have a nikon until recently and I am now thinking of buying a new camera and want to experiment more with it. The types of things I want to do is: control the ...
newmathwhodis's user avatar
15 votes
3 answers
15k views

What are the electrical contacts in a Nikon F-mount?

Current Nikon camera bodies and lenses have electrical contacts. What exactly are they used for and what sorts of electrical signalling is used? Why are there so many? Some background to my question. ...
RedGrittyBrick's user avatar
22 votes
4 answers
5k views

What are good advanced books on the physics and science of photography?

I am looking for books about the physics of DSLR, including modern photography optics and sensor electronics. If I already have some books on optics and electronics, I have found fairly hard to find ...
drolex's user avatar
  • 644
8 votes
1 answer
7k views

OEM Camera Sensors for a computer project

First off I'm not sure if this is the place for this question, but it seems to be the closest fit. I want to buy a small camera sensor (like for netbooks/phones), from what I have read on wikipedia ...
Gunslinger's user avatar