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40 votes
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Why can't my custom camera body focus to far distances?

If I have built my device with the correct distance between the flange and the optical plane, does this mean the (inexpensive) lens I am using is bad? If you had built your device using the proper ...
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  • 167k
12 votes

How can I make a reflector at home?

The most available large sheet material is corrugated cardboard. If you have a single layer sheet, you should first glue at least another single layer sheet on top of it to make it more stable. ...
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  • 8,334
11 votes
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Where can I find a filter similar to taking a photograph through green Ray-ban sunglasses?

The Ray-Ban B-15 created for the US Air Force. These are brownish and block 100% of all UV rays and only 15% of the remaining visual rays. The most popular for general use is the Ray-Ban G-15, a ...
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11 votes
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How can I stiffen a droopy Gorilla Pod?

The following method worked for me to stiffen up a generic fakey-pod (i.e., meaningless name / brand gorillapod clone). This may or may not work for your version. I only had problems with a few ...
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11 votes

Canon 18-55mm lens giving err01 after it fell down

whether lens could be repaired without loosing big amount of money? Whatever the damage, repairing the 18-55 almost certainly isn't worth it. People upgrading sell them for not very much, just get a ...
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  • 19.7k
10 votes

Is it possible to develop cyanotypes with an LCD projector, given the need for UV?

No, there's no conversion for LCDs — and you wouldn't have anything approaching the resolution you'd want for a print that size anyway using a digital projector. The usual procedure for making ...
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  • 101
10 votes

Canon 18-55mm lens giving err01 after it fell down

The black obstruction looks like a detached aperture blade. This is a seriously damaged lens. Repairing it would at least require it to be dismantled and the aperture blades replaced. Possibly there ...
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  • 3,374
9 votes

Why can't my custom camera body focus to far distances?

If not, do I move the lens away or closer to the optical plane to fix the problem? If the lens will focus on near subjects, but not on a subject at "infinity," then that means that the lens is too ...
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9 votes

Will a small format lens focus correctly in a large format camera?

Focus is not the issue here. The issue is coverage. Any lens gathers light from a cone in front of it (angle depending on the focal length), and projects it to a cone behind it (angle depending on ...
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  • 161
8 votes

How do welder's glass shades translate to stops when used as an ND filter?

As a welder and new to photography I recently researched the possibility of filming the welding process, my research found many sources including this site and the post to which this attached... and ...
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8 votes

How can I make a reflector at home?

Automotive windshield reflectors can function well as photographic reflectors. The best ones are the shiny silver accordion-fold ones (they often have a "bubble wrap" -like core).
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  • 31k
8 votes

What should I use to re-stick the thumb rest on a Canon 550D?

Both the official Canon replacement part and many of the third party replacement parts offered on eBay show 3M tape already attached to the back of the replacement grip. I'd follow their lead as ...
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  • 167k
8 votes
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How to produce smoke for studio photography

Most commercial photographers who use smoke a lot buy a commercially made "fog machine" that converts a fluid into dense vapor. The fluid is primarily made of water and glycerin. The machine simply ...
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  • 167k
7 votes

How can I make a reflector at home?

A large piece of foam core board (or mat board) is good for portraits. Clamped on a stand opposite of a soft box (key light) just outside of framing. It could be black on one side for absorbing light ...
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  • 3,521
7 votes

How can I know if two lenses have interchangeable elements?

Sadly, you can't, without taking them apart to find out. Unfortunately, it's not reliable to assume anything about the construction of photographic equipment. Even if two instances of what is ...
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7 votes

Is is possible to externally power my DSLR with the original battery that is connected to the DSLR by means of wires?

As far as I can tell, at least in my two Canon DSLRs you cannot wrap a wire around the battery contacts in the battery compartment. So you could have to implement some sort of connector, for instance ...
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  • 16.1k
7 votes

Is is possible to externally power my DSLR with the original battery that is connected to the DSLR by means of wires?

In addition to what has been said, you cannot be certain that a given camera design can deal with the extra (ohmic or inductive) impedance long wires introduce. The power supply circuit could get ...
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6 votes

How to calculate the optimal pinhole size?

The earliest investigation of the right constant c that I am aware of is Petzval's 1859 On the camera obscura. The paper is predominantly about a new lens design he has created but he begins with an ...
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6 votes
Accepted

How can I replace this clear plastic rectangle from inside of my DSLR piece?

That's a 'focusing screen'. You can easily obtain it either from the manufacturer directly, or from a camera store. For example from Adorama Typically, for one model of camera there will be a few ...
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6 votes
Accepted

Can I DIY a regular backpack to protect my camera gear?

I hike with cameras a lot, most DSLRs are much more robust than most people think, and providing you protect the lens surfaces you normally don't need much to keep it safe. Padding Put the camera ...
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6 votes

How can I know if two lenses have interchangeable elements?

Almost every piece of every modern lens from the major manufacturers has a part number. If you can access the service manuals for the two lenses in question you can compare the part numbers. If the ...
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  • 167k
5 votes
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How can I make a telescope attachment for my DSLR to capture space images?

You should know that the big astronomical observatories sport giant telescopes that are actually telephoto lenses for specialized cameras. That being said, you can mount most any camera to binocular ...
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5 votes

How can I make a reflector at home?

For a large reflector go to a stationery shop and buy a large sheet of white paper for card. It's not as portable or durable as a proper reflector, but does the job.
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5 votes

How can I fix a Canon lens with sand in the aperture diaphragm?

It's a lot harder than you probably think it is Disassembling, cleaning, and reassembling a modern lens is a daunting task for anyone who does not have the proper training, experience, and tools. ...
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  • 167k
5 votes

How to produce smoke for studio photography

Another method of producing "smoke" is to dump some chips of dry ice (frozen CO2) in water (hot water will produce more "smoke" more quickly, but dry ice is cold enough that the water usually won't ...
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  • 18.7k
5 votes

What are the odds of breaking a camera by opening it?

Digital cameras are not made to be end-user reparable. It is likely that there are tiny ribbon cables and other small connectors, pieces fit into place just so, and even things glued together in a way ...
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  • 140k
5 votes
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What DIY methods exist to trigger a Lumix G3 without touching the camera?

The self-timer should work. If the camera is still shaking after 2 seconds, even with a big telephoto, you need a stronger tripod. Another choice is to use a separate card as a shutter. Set the ...
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5 votes

What shutter can fit a lens element with large glass?

I am assuming that if I use a shutter of a smaller diameter than the lens, the properties of the lens will change (for example, it will become less fast), because of the smaller aperture ring behind ...
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4 votes

How can I avoid star trails without an expensive tracking mount?

You can actually buy barn door trackers! As a hobby I make and sell them. Been doing it for a while. Much cheaper (but obviously lower performance) than the Orion mounts mentioned above. Check out ...
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4 votes
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Can I modify a Logitech C615 webcam for infinity focus?

I had the same issue/idea as you and decided to see if I could alter the camera to focus father away. After taking it apart, the four spokes don't appear to allow adjustment of the focus. They don't ...
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