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A lens mount is an interface, mechanical and often also electrical, between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses.

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4
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1answer
508 views

Is this Canon 70-200 F/2.8 IS II strap/sling attachment safe?

I received my 70-200 F/2.8 IS II today (YAY) and I knew it had a tripod ring, but I thought it also had camera strap attachment points on the tripod ring like some other heavy lenses do, but this one ...
6
votes
2answers
130 views

Can I intercept and interpret the autofocus signals sent to the lens?

I would like to use a Nikon D80 body with a reflecting telescope as the lens to take pictures of bright/textured objects in the night sky (e.g. the moon). The D80 has autofocus capabilities; the ...
0
votes
1answer
405 views

Lens not attached message on nikon d5000 with nikon 24-70mm

I recently bought a Nikon 24-70mm for my D5000, but I soon had the "lens not attached" message on my screen. The message disappears when I slightly rotate the lens a bit more. I've searched online ...
3
votes
2answers
4k views

What's the difference between Canon EF-S and EF-M?

What is the difference with Canon EF-S and EF-M lens?
1
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1answer
191 views

What lens and mount is this Sigma lens for Canon?

I have recently been given old(ish) Sigma 55-200mm lens for Canon (not EF mount), I believe that it is f/4-5.6. It is zoomed by pulling the barrel out. What mount is it? And what specifications does ...
5
votes
3answers
400 views

Why do camera manufacturers use different lens mounts?

If all manufacturers used the same mounts for their cameras then they could share lenses and focus more on improving optics, sensor technology and accessories instead of having completely separate ...
4
votes
3answers
353 views

Are fully automatic DSLR lens changers available? What are suitable alternatives?

Do portable fully automated DSLR lens-changers exist? If so, how well do they work and how do they compare with alternative solutions. I've seen many "lens bags" offered to ease the lens ...
1
vote
3answers
1k views

How to mount a 58mm lens on Nikon D80?

I have a Nikon D80 50mm camera with a 52mm Haze filter. I would like to attach some 58mm lenses that I have but not sure which adapters I need. The 58mm lenses have male threads that would attach to ...
4
votes
2answers
607 views

Can I use my existing Canon lenses on an EF-M camera body?

Canon recently introduced the Canon EOS M, mirrorless interchangeable lens camera. It uses a new EF-M mount and is available as a kit with an EF-M lens in some regions. I have existing EF and EF-S ...
10
votes
2answers
418 views

Are there new digital cameras that my old zoom lenses from my analog Yashica camera will fit?

I have an old analog camera (Yashica) with a bayonet lock and several zoom lenses for it. All of that was very high quality at the time and I would like to re-use it for a digital camera. Are any such ...
2
votes
2answers
682 views

Will lenses with filter attachment size 58mm fit my camera when the kit lens has filter size 72 mm?

I need help - I want to buy 50mm f/1.8 for my Nikon d300. The description of the lens says Filter Attachment Size 58mm. My kit lens is filter size 72 mm. Is 58mm is the right size lens for my ...
1
vote
1answer
628 views

Olympus T2 Adapter ring stuck on my Sony Alpha — how can I get it unstuck?

Edited. I bought a Samyang 500mm Mirror lens off ebay so that i could try and expirement with tele photos before i decided to buy really expensive lenses.. I got the lens with a T2 Adapter (Olympus) ...
3
votes
1answer
240 views

What adapter do I need to mount a Konica lens on an Olympus E-520?

I bought a Konica Super Albinar MC auto zoom 1:4.5 F=80-200 mm no. 911485 55 lens for my E-520 Olympus camera. The adapter I already have does not fit and I desperately need to know what kind of ...
4
votes
2answers
3k views

Does using a lens adapter change focal length?

Does using a lens adapter change the field of view? I recently bought a Sony NEX-5, an extra Minolta MD 50mm 1.7/f lens and a MD to E-mount adapter and I was wondering, as the adapter increases the ...
4
votes
1answer
2k views

Can I use the lens from Canon AE-1 on a Canon EOS 60D, with an adaptor maybe?

I have a Canon AE-1 (film) and I bought a digital slr camera Canon EOS 60D. I have lenses from the AE-1 camera, but I don't know if there are some adaptors to use so they fit in the 60D camera... any ...
8
votes
3answers
8k views

Are Canon EOS and Nikon DSLR lenses interchangeable?

Can we use the lenses from, say a Canon EOS 550D kit (Canon EF-S 18-55mm) with a Nikon DSLR D5000 for example) ? Also, is the reverse possible ? I'm looking at interchangeability between recent DSLR ...
7
votes
2answers
3k 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 ...
5
votes
1answer
1k views

How do I remove a broken lens mount ring from a lens?

Today my Nikon d90 was drop with attached Nikkor 18-200mm lens. The lens detached from the body and ripped of the metal ring with screws from the body. How can I fix it? I don't know how to remove the ...
12
votes
1answer
220 views

What lens design limits derive from the width of the lens mount?

I'm familiar with the lens design limitations imposed by the flange-to-focal-plane distance. But what constraints are caused by the width of the lens mount (that is, the size of the hole in the ...
3
votes
1answer
1k views

Can I use an old Olympus-mount lens on a Canon DSLR?

What is the mount adapter I need to mount a Vivitar 28mm 1:2 No.22 (made by Kino, aka Kiron) lens on my Canon 600D? Is it the T/T2 lens mount? I used to mount this lens on my dad's Olympus OM-10. ...
1
vote
1answer
777 views

Which mount adaptor do I need to mount an old Tokina FL/FD lens on a Canon 30D?

I have an old Tokina Fully Automatic Lens 400mm F-6.3 lens. Says on a small label: "To fit C/FD Canon FL and FD lens series" I have a Canon 30D. Which is the right mount adaptor to use? Best if ...
10
votes
1answer
356 views

How do I identify unknown thread mounts?

A local thrift store is selling a macro bellows with thread (screw) mounts. The mount is not identified. I have a cheap digital caliper. What are the likely mounts that it could be, and how can I ...
4
votes
6answers
2k views

What are the advantages to using EF-S lenses on Canon APS-C cameras?

I know EF-S lenses are "optimized" for crop sensors but what are the exact advantages to using an EF-S lens? Does it give better color, sharpness, depth of field, etc...? In addition, do EF-S lenses ...
2
votes
0answers
156 views

Is there an adapter for Canon AE-1 lenses on Canon 550D? [duplicate]

Possible Duplicate: Is it worth it to buy an FD-EOS adapter, or is it better to exchange a misbought lens? Is there a way to use my old Canon AE-1 lenses on my new EOS-550D?
3
votes
2answers
420 views

Is it possible to mount Pentax lenses on Sony NEX with an adapter?

I wonder whether it would be possible to mount Pentax lenses on a Sony NEX, using an adapter. Are such adapters already available? Would it be possible to have automatic focus?
7
votes
3answers
253 views

How do I find out which Nikon film cameras will work with my newer G F-mount lens?

I want to pick up a film camera but I have a nice G lens (Tamron 17-50 f/2.8 with VC) and I'd really like to be able to use it. I'm having a hard time understanding which cameras will be able to work ...
3
votes
1answer
395 views

Are Konica and Minolta lenses interchangeable?

I have an old Konica FS-1 35mm SLR camera with quite a nice F1.8 lens on, but I'd like to use a different body (without a battery pounding auto wind on mechanism!). There seem to be plenty of Minolta ...
7
votes
3answers
613 views

Fast telephoto primes for APS-C mounts — would they make any sense?

I can see the benefit of designing and manufacturing a wide-angle lens specifically for APS-C sized sensors instead of full-frame sensors: you will get smaller, lighter, and cheaper lenses. But is it ...
5
votes
2answers
994 views

Mounting a Canon EF lens on a Leica M body?

Is it possible to use existing Canon EF lenses with a Leica body with an M mount? I've seen various discussions in the Internet on this combination, but usually the other way round (mounting a Leica ...
7
votes
2answers
703 views

Pentax to Canon Adapter

My dad has an old Sears KS-2 + 50mm f/1.7, which from a bit of research seems to use a Pentax K-mount. I've looked around a bit and found a Pentax to Canon adapter, which says it supports ...