Sorry "SLR" is not a lens mount standard. Each digital camera manufacturer has a different format. And they are ALL incompatible with ALL film camera mounts.
If you are going to get a DSLR camera, get an appropriate lens for that camera to start off.
However, that said, for those who want to experiment and know what they are doing, it is possible to use old lenses on DSLRs. By using the wide range of adapter rings available. Only be aware that none of the digital camera features like autofocus and aperture control will work. You'll have to do those manually.
I count myself as 'experimenter, don't really know what I'm doing'. But I've collected a few notes:
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Adapting older photographic lenses to:
- Canon EOS DSLR cameras with EF mounts. (like the 20D & 40D)
- C-mount video cameras (digital and analog)
Ebay search: canon eos adapter
Lens types to consider
Canon FD These were for Canon film cameras.
Pentax K
https://en.wikipedia.org/wiki/Pentax_K-mount PK Same as K. Just a different name. Short for "Pentax K"
M42 Very widely used. Invented by Zeiss in 1938. Used by Pentax prior to K-mount.
Aka: Universal thread mount, Universal screw mount & Pentax thread mount.
Canon FD
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See:
https://en.wikipedia.org/wiki/Canon_FD_lens_mount http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/FDcatalogue/fdcatalogueN.jpg 2,016 x 1,194
Pentax K & PK
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See:
https://www.ephotozine.com/forums/topic/pk-vs--k-mount-1635 http://www.bdimitrov.de/kmp/ The K-mount page.
PK is shorthand for Pentax K. There are a few variants of the K mount, but all use the same actual mount, the differences being down to electrical connections for program modes, (KA) or autofocus (KAF) Any K, KA or KAF lens will work on an older manual focus body, so if you opt for a K1000, you should be fine.
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the lens mount is the same basic K on all versions with extra couplings as the cameras have become more sophisticated. Some manufacturers add P at the front to determine it's Pentax fit. PKA is an auto lens mount with an extra pin coupling that supplies electronic connection to auto exposure cameras and KAF is for the newer autofocus cameras.
M42
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See:
https://en.wikipedia.org/wiki/M42_lens_mount https://en.wikipedia.org/wiki/Pentax_K-mountThe M42 screw-mount system was used by Pentax prior to the introduction of the K-mount. Pentax designed the K-mount wide enough to allow an adapter to fit between the M42 thread and the K bayonet. They also kept the same flange focal distance (also called registration distance or register) as the M42 screw-mount, so that M42 lenses focus correctly using the correct adapter (such as Pentax original[2] or Bower). There are however other third-party adapters that add to the flange focal distance so that one loses the ability to focus to infinity. The loss of infinity-focus may not be significant in macro or close-up photography.
There is great debate in the Pentax community over the applicability and safety of adapters other than those supplied by Pentax. Many users of third-party infinity-focus adapters, such as Bowers, report difficulty in removing the adapters from camera bodies. Such adapters may require modification before they may be safely used. Official Pentax adapters, and flanged non-infinity-focus adapters, do not provoke such problems.
Many old M42 lenses have a modern-day cult reputation, including the (Pentax) Asahi Takumar range. Some manufacturers, including Carl Zeiss AG, still make lenses in the M42-mount. K-mount cameras have a suitable flange focal distance (45.46 mm) to adapt old M42 lenses without any optical correction or loss of infinity focus/changed close focus distance. Other SLRs with a short flange-focal distance can accept M42 lenses as well: Canon E-mount (44.00 mm), Sony and (Konica) Minolta A-mount (44.50 mm), Sigma (44 mm), Olympus 4/3rd (38.67 mm), and many more, but notably not Nikon F-mount (46.5 mm).
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Lists of adaptors, for old photographic lenses, to things I use.
Image sources (old lenses, etc)
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Canon FD These were for Canon film cameras.
Pentax K
https://en.wikipedia.org/wiki/Pentax_K-mount PK Same as K. Just a different name. Short for "Pentax K"
M42 Very widely used. Invented by Zeiss in 1938. Used by Pentax prior to K-mount.
Aka: Universal thread mount, Universal screw mount & Pentax thread mount.
23mm Microscope tubes.
Image capture device mounts
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Canon EF mount For EOS 40D camera, etc.
C-mount For video cameras, digital cameras, etc.
Adapter sources
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*
http://www.aliexpress.com/store/group/Adapters-Mounts-Tubes/924907_502570153.htmlHave, bought, sources, info, etc
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FD --> EF
FD --> C
C --> EF Bought
K --> EF
EF --> EF Macro extender. Bought
K --> C
M42 --> EF Bought 20160423. received. US$1.95 ebay seller wonderfuloutlet
M42 --> C
23mm --> EF Bought, no lens. Added anti-reflection liner.
23mm --> C Have: - non-adjustable, no lens.
- 3x Touptek, differing magnifications.
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Bought
C Mount Movie Film Lens to Canon EOS EF Adapter Macro Shooting Ring 1000D
http://www.aliexpress.com/item/For-C-Mount-Movie-Film-Lens-to-Canon-EOS-EF-Adapter-Macro-Shooting-Ring-1000D/32455904097.htmlMacro Extension Tube Ring for Canon EOS 350D 400D 450D
http://www.aliexpress.com/item/Macro-Extension-Tube-Ring-for-Canon-EOS-350D-400D-450D/1294360467.htmlMount Adapter Ring for M42 Lens to Canon EOS DSLR and SLR EF Item price AU $2.68
Item discount -AU $0.13 ebay Item number 271515684555
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Adapting Canon FD to EOS EF
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20160212
Get very cheap lenses - Use old Canon FD lens on your Canon EOS Camera
Also all kinds of adapter rings
http://www.aliexpress.com/store/group/Adapters-Mounts-Tubes/924907_502570153.htmlThis one:
http://www.aliexpress.com/store/product/Canon-FD-AF-Confirm-for-EOS-450D-350D-30D-40D-400D-1D-5D/924907_1105128058.htmlAdapter Ring for Canon FD /FL Lens to Canon EOS EF DSLR Cameras + AF Confirm
Rated 5.0/5 based on 2 customer reviews 5.0 (2 votes) 5 orders
Price: US $26.69 / piece
With this lens adapter, you can mount Canon FD / FL Lens on Canon EOS cameras such as Canon EOS 500D, 1000D, 450D, 400D, 350D, 300D, 50D, 40D, 30D, 20D, 5D ll, 5D, 1DS lll .etc.. This fabulous Adapter can enable Canon EOS cameras to work with a variety of accessories. It will allow the Canon EOS owner to widen the scope of photography they undertake.
Features:
Newest generation! With best Chip, focus infinity is possible !
Superior quality , made of brass, no cheap aluminium product! With perfect surface finishing
With our special AF Chip (newest Generation) you can confirm the sharpness of the image with manual focus through the viewfinder.
In the viewfinder there will be a red dot(AF) illuminated with audio signal to indicate if the focusing is good.
Compatibile with:
Canon EOS 1D, 1DS, 1D Mark ll, 1Ds Mark ll, 1D Mark ll N, 1D Mark lll, 1Ds Mark lll
Canon EOS 50D, 40D, 30D, 20D, 10D, 5D,5DMark ll, 7D
Canon EOS 500D, 450D, 400D, 350D, 300D etc.
And other Canon Film EOS Cameras
https://en.wikipedia.org/wiki/Canon_FD_lens_mounthttp://cameraplex.com/list-every-canon-fd-lens-ever-made/http://web.mit.edu/dennis/www/canon/fd-lens-info.html http://cameraplex.com/wp-content/uploads/2015/02/Canon-FD-Lens-list-Cameraplex.jpg 700 x 300 pixels
tineye search finds the original:
http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/FDcatalogue/fdcatalogueN.jpg 2,016 x 1,194 pixels
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http://www.aliexpress.com/store/product/Adapter-Ring-for-Canon-FD-to-EOS-450D-350D-30D-40D-400D-1D-5-50D-Adapter/924907_32451937644.htmlAdapter Ring for Canon FD to EOS 450D 350D 30D 40D 400D 1D 5 50D Adapter
US $22.99
Adapter Ring for Canon FD / FL Lens to Canon EOS EF DSLR Cameras
With this lens adapter, you can mount Canon FD / FL Lens on Canon EOS cameras such as Canon EOS 500D, 1000D, 450D, 400D, 350D, 300D, 50D, 40D, 30D, 20D, 5D II , 5D , 1DS III .etc. This fabulous Adapter can enable Canon EOS cameras to work with a variety of accessories. It will allow the Canon EOS owner to widen the scope of photography they undertake.
Suitable for:
Canon 100D/350D/450D/500D/600D/650D/700D/750D/760D/1000D/1100D/1200D/10D/20D/30D/40D/50D/60D/70D/1D/1D Mark II/1D Mark III/1D Mark IV/1Ds/1Ds Mark II/1Ds Mark III/1DX/5D/5D Mark II/5D Mark III/5DS/5DS R/6D/7D/7D Mark II
GKD: Has no chip.
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M42 to EOS
I think my Soligor lens is M42.
M42 is a plain screw thread.
Ha, this lens fits the EOS mount part of the the 23mm microscope adapter. And works, though the focal range adjustment is off, and it doesn't focus to infinity.
http://www.aliexpress.com/store/product/M42-Lens-to-CANON-EOS-400D-450D-350D-40D-5D-10D-1Ds-etc/924907_1108044233.html US $5.99
http://www.aliexpress.com/store/product/Adapter-Ring-Tube-M42-Screw-Mount-Lens-to-Canon-EOS-M-Mount-Camera-Metal-Solid/924907_1194697721.html Adapter Ring Tube M42 Screw Mount Lens to Canon EOS M Mount Camera Metal Solid
What is EOS M?
Bought:
20160423
ebay Sold by wonderfuloutlet ( 43984 )
Hot Sale Mount Adapter Ring for M42 Lens to Canon EOS DSLR and SLR EF Useful Item price AU $2.68
Item number 271515684555
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g: pentax K lens to canon eos adapter
http://www.aliexpress.com/store/product/Pentax-PK-lens-AF-Confirm-for-CANON-EOS-50D-300D-Adapter/924907_1105240840.htmlPentax PK lens AF Confirm for CANON EOS 50D 300D Adapter
US $21.99
Adapter Ring with AF Confirm for PK ( Pentax & Ricoh ) Lens to Canon EOS EF DSLR Cameras
Newest generation! With best Chip, focus infinity is possible !
With this lens adapter, you can mount PK (Pentax $ Ricoh ) Lens on Canon EOS cameras such as Canon EOS 500D, 1000D, 450D, 400D, 350D, 300D, 50D, 40D, 30D, 20D, 5D ll, 5D, 1DS lll .etc.. This fabulous Adapter can enable Canon EOS cameras to work with a variety of accessories. It will allow the Canon EOS owner to widen the scope of photography they undertake.
Features:
* Superior quality , made of brass, no cheap aluminium product! With perfect surface finishing
* With our special AF Chip (newest Generation) you can confirm the sharpness of the image with manual focus through the viewfinder. In the viewfinder there will be a red dot(AF) illuminated with audio signal to indicate if the focusing is good.
* Newest Generation ! focus infinity is possible !
Compatibile with:
* Canon EOS 1D, 1DS, 1D Mark ll, 1Ds Mark ll, 1D Mark ll N, 1D Mark lll, 1Ds Mark lll
* Canon EOS 50D, 40D, 30D, 20D, 10D, 5D,5DMark ll, 7D
* Canon EOS 500D, 450D, 400D, 350D, 300D etc.
* And other Canon Film EOS Cameras
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