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  • Fotodiox Lens Mount Adapter, Black M42 (42mm x1 thread Mount) Lens to Canon EOS DSLR Adapter, fits Canon EOS 1d,1ds,Mark II, III, IV, 5D, MarK II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Digital Rebel xt, xti, xs, xsi, t1i, t2i, 300D, 350D, 400D, 450D, 500D, 550D, 1000D
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Fotodiox Lens Mount Adapter, Black M42 (42mm x1 thread Mount) Lens to Canon EOS DSLR Adapter, fits Canon EOS 1d,1ds,Mark II, III, IV, 5D, MarK II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Digital Rebel xt, xti, xs, xsi, t1i, t2i, 300D, 350D, 400D, 450D, 500D, 550D, 1000D

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List Price: $25.90
Price: $8.23 & FREE Shipping on orders over $35. Details
You Save: $17.67 (68%)
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  • Premium-grade Fotodiox adapter
  • Smooth surface for effortless mount
  • Infinity focus allowed
  • Anodized aluminum construction
  • Includes a 24 Month Manufacturer Warranty
1 used from $1.74

Frequently Bought Together

Fotodiox Lens Mount Adapter, Black M42 (42mm x1 thread Mount) Lens to Canon EOS DSLR Adapter, fits Canon EOS 1d,1ds,Mark II, III, IV, 5D, MarK II, 7D, 10D, 20D, 30D, 40D, 50D, 60D, Digital Rebel xt, xti, xs, xsi, t1i, t2i, 300D, 350D, 400D, 450D, 500D, 550D, 1000D + Fotodiox Lens Mount Adapter, Nikon Lens to Canon EOS Camera Body, for Canon EOS 1D, 1DS, Mark II, III, IV, 1DX, 1DC, 5D, 5D Mark II, II 7D, 10D, 20D, 30D, 40D, 50D, 60D, 70D Digital Rebel T2i, T3, T3i, T4i. T5i, C300, C500 + Fotodiox Designer Rear Lens Cap for Canon EOS EF, EF-S Lenses, Replaces Canon RF-1 Cap
Price for all three: $29.50

Buy the selected items together


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  • Buy Used and Save: Buy a Used "Fotodiox Lens Mount Adapter, Black M42 (42mm x1 th..." and save over 90% off the $25.90 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Details

  • Product Dimensions: 1 x 1 x 1 inches ; 3 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B001G4QXN2
  • Item model number: 07LAm42eosB
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (91 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: September 15, 2008

Product Description

The Fotodiox M42-EOS Lens adapter allows you to place your favorite M42 screw-mount lens on your Canon EOS camera body. This adapter gives you the ability to use your irreplaceable prime lens and saves you the cost of purchasing new lenses. The adapters are precision made to insure the perfect fit. The lens will fit physically, but the automatic diaphragm, auto-focusing, and other functions will not operate correctly while using this adapter. In this case, "stop-down mode" will need to be used when metering, since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot in manual or aperture priority mode. Infinity focusing is guaranteed.

Customer Questions & Answers

Customer Reviews

The adapter works great and the lens works great!
Modern Day Pirate
There are ridges around the edge of the adapter so you can get a better grip when tightening / unscrewing it from the lens.
majortomiscominghome
Probably gonna buy a few more so I have one for each of my lenses.
Lafingputz

Most Helpful Customer Reviews

14 of 14 people found the following review helpful By RI Sadler on July 11, 2010
The adapter is very well made and fits better than most from other sources. However, it has one very irritating flaw. The M42 thread on the examples I bought are off by roughly 60 degrees, meaning that instead of the distance scale marker sitting at the top, it now sits well to the right. The A/M lever is now also very difficult to use, as it in turn sits at the top, right under the "extension" for the flash.

I have contacted Fotodiox about this, but no response.

For the casual M42 lens user, this adapter is recommended. But for the use-M42-lenses-daily user (like myself), the search for a good converter continues, as this isn't it.
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8 of 8 people found the following review helpful By C. A. Hartman on August 21, 2009
Verified Purchase
This works just as it is supposed to. I have a Canon Xsi DSLR and a handful of lenses from my mother's 40 year old pentax. All work great!
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6 of 6 people found the following review helpful By Keeohno on November 7, 2011
I'm using this adapter on a Rebel T3i with a 50mm 1.4 SMC Takumar, a Vivitar 135mm 2.8, and a Vivitar 2x tele-extender. This piece works sufficiently to mount the lenses to the camera, but there are some nagging faults.

Overall, the adapter has a clean construction- it's well made, but the threads are not properly aligned, meaning all your lenses will rotate about 45º past the "correct" stop. A bonus is the flange that depresses the aperture pin, allowing for full aperture control (in most cases).

50mm Takumar: Seeing how this appears to be the model lens shown by Fotodiox, I assumed it would work flawlessly. Unfortunately, mounted normally the lens is prevented from reaching infinity focus, due to the design of the adapter restricting the rear element movement. The focus is flawless from around the 15 foot mark to the minimum focus distance. Also, the lens retains full aperture control.

12/3/11 EDIT: I filed about 1mm of material off of the inside of the adapter ring, allowing my 50mm to focus perfectly throughout the range.

Vivitar 135mm 2.8: This lens works well with the adapter, retaining a full range of focus. However, the design of the lens does not allow the adapter to press the aperture pin in all the way, meaning that apertures smaller than f11 are unobtainable (effective aperture range is 2.8-11). That said, how often do you shoot with a telephoto prime at minimum aperture?

Vivitar 2x tele-extender: I was most pleased with the results of the this piece mounted with the Fotodiox adapter. Coupled with the 50mm Takumar, full aperture and focus ranges were retained. Flawless.

Overall, the M42 to Canon EF adapter is a fine product for $10. Don't expect it to work perfectly every time (or any time, perhaps), but for what it is and what it's used for, it's worth it to try it out.
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3 of 3 people found the following review helpful By Caseym on October 11, 2011
Verified Purchase
This adapter works as needed. On my canon t2i It fits well and doesn't leak light. I recommend it to anyone. Also the shipping was quite fast.
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5 of 6 people found the following review helpful By Dustin Mennie on November 8, 2012
Verified Purchase
The good is that it is indeed made of metal and certainly allows one to use M42 lenses. The bad is that it doesn't lock fully in place! It has a slight wiggle of perhaps a millimeter or two in its rotation, so that when one focuses it will likely move. Almost a fantastic product for the price save for this annoying flaw. The mount is most definitely "locked" and won't come off without being manually released, but it isn't secure. Fotodiox has not replied once to any of my 3 attempts to contact them.

Used on a 5D MkII

ATTENTION: Not all M42 lenses function when focusing to infinity on 5D cameras due to the large mirror on the 5D. This page compiles a thorough list of those that will and will not hit the mirror when attempting to take a picture when focusing at infinity: panoramaplanet.de/comp/
Hope that helps,
Cheers
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2 of 2 people found the following review helpful By John D. Linn on January 21, 2010
Verified Purchase
The adapter arrived on time and in good condition, and it fits my Canon XSi and Pentax SMC Takumar 50mm 1.4 lens fine. Someone else mentioned that focusing could be a challenge because modern auto focus digital SLRs do not have the focusing aids that were available on manual focus cameras like my old Spotmatic. They were right. Sure you can kind of see when something is in focus but I have gotten a lot of images that are not quite focus sharp.

There are other adapters that have a (magical?) chip in them that allows your digital SLR to indicate when you have achieved best focus. I have now ordered that and hope that will give me more consistent results (but still with the need to manually stop down the f-stop). The adapters with the chip are more expensive but still not much more considering the advantage.

I am looking forward to seeing just how good the Takumar lens does on the Canon. Many years ago I had the lens tested and it was rated "excellent" on most f-stops. So this will be telling... can a nearly 50 year old lens perform as well or better than a modern "normal" zoom? We'll see.
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4 of 5 people found the following review helpful By Anh Dang on January 4, 2011
Verified Purchase
It's cheap, it does the job and it does the job well. You can pay more for another one with AF chip, but expect to pay a lot more. I chose the black anodized version to match the lenses and the body's color. It is built to function and and to last, so no worry, it works right out of the box.

45 degree off axis? Not a problem. All focus distances work. Great value!
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1 of 1 people found the following review helpful By PFHartman on January 5, 2013
Verified Purchase
This adapter works well when the F-stop adjustment ring is forward of the rear end of the lens, is recessed. I have two mamiya /sekor lenses that have a large, knobby f-stop ring at the very end of the lens. When this adaptor is screwed onto the lens you cannot adjust the f-stops as the flange tightens up to the ring, and as long as the lens is screwed in tight, you cannot adjust the f-stop. Worked fine with a Ricoh lens where the f-stop ring is forward of the rear edge of the lens barrel. Did not work with the Mamiya f4- 21mm or my Mamiya f2.8-135mm.
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