FotodioxPro Praktica B-System (Also Known as PB) Mount Lenses to Canon EOS (EF, EF-S) Camera System (Such as 7D, 60D, 5D Mark III and More)

My partner wanted to get back into photography and she wanted to upgrade from her older Rebel T1i to a newer camera and went with the Rebel T5 which was on sale. She was ecstatic when she saw how wonderful my pictures came out when I was shooting on a Panasonic G7 and with older Canon FD lenses using a focal reducer.We got this adapter to go with her Rebel T5 and she paired it with a vintage Canon FD 50mm f1.8 lens. We noticed a lot of haziness and softness at f1.8. I thought it may be the lens itself, maybe fungus or debris. We thoroughly checked the lens and it's extremely clean, almost perfect. The adapter is clean as well.Also, the other thing I questioned was the crop factor since there's a glass in the adapter. I conducted a quick test. A tripod was set up 4ft from my test bench. I mounted my own Rebel T5 on it with both a vintage Canon FD 24mm f2.8 lens using this adapter and a Canon EF-S 24mm f2.8 lens. From the results you can see the crop factor on the vintage lens compared to the standard EF-S lens. Being at f2.8 also caused the haziness in the image.Overall the adapter is decent. For the price it does its job on being able to use vintage FD lenses on a Canon Rebel camera. Moving the f-stop up at least one above your lowest will help clear up your images and prevent the haziness. I didn't give the adapter a perfect five stars due to this concern and at the same time I avoided three stars because the cost is a lot lower than other adapters with glass elements. It's good for using vintage lenses but just keep in mind its limitations.

These work as advertised. They lock up real tight.One comment to everyone that has said that they've had trouble getting them off of their camera once snapped in -If you look at the set you will see the end that attaches to your camera has that small bolt sticking out. You have to push that forward (away from the camera in line with your lens) to get the ring to release from your camera. It is designed to work like it does.If I had a suggestion for the manufacturer it would be that the little bolt thing-a-ma-doo-dad works ok (once you realize how to get it to release) - using a lever style or something that is angled so that it is easier to get too - and / or - simply putting an arrow with the words push -> to release . . . . would both make it more noticeable aiding the people who buy the product . . . and aiding you by not having them return something as defective after having tried to not destroy their camera getting it off - because you didn't give the most simple description of how to get it to release.)They do work and work pretty smoothly once you realize what you have to do to get it to release but the other issue with how you have this built is there's not a lot of space between the camera body and your little bolt head.Anyone considering buying these - no worries they seem to work just fine but it's pretty important to know how to get the thing to release - and that little gizmo is really the only thing about these that isn't what I'd call pretty decent manufacturing. It works it's just kind of crude compared to the rest of the product.

This lens adaptor looks well machined and feels sturdy in my hand, but every breech-lock mount lens I put on it does not work correctly, more specifically, the aperture is not allowed to operate its full range – I can only seem to get it to go between wide open to about 50% closed, around f/8 or so depending of course on which lens I am using.I have three breech-lock mount lenses, two made by Sears, and the other made by Star-D (probably all made by Samyang) and they all act the same way. Upon further inspection, it appears that the breech-lock collar that is supposed to rotate around the mount on the camera only turns a little bit before it is synched down and will not rotate any more. If I really grip it, and force it to rotate just a little more, then I can get a little more range out of the aperture, but only a stop or two, never getting any where near f/22. Those three breech-lock mount lenses all work great on my AE-1 and the collar rotates a lot more when connected to that camera.I do have one Canon branded lens that is a bayonet mount and it works well with this adaptor, allowing full range of the aperture with no problems. The difference is that is doesn’t have the rotating collar to synch-lock the lens onto the camera’s body mount.My guess is that there is some machining tolerance that wasn’t set right when the adaptor was manufactured, probably only a couple thousandths of an inch, but enough nonetheless.I’m unhappy that this only seems to work correctly with bayonet mount lenses when the instructions state that it will work with that and breech-lock lenses.I haven’t seen anyone else anywhere mention this type of problem, maybe I just got a bad adaptor?

Compared with the cheap options out there, this one is pricy but worth it.I am using this on a 5D classic. Having tried quite a few from different places (from £0.99 to 18.95) I found the Fotodiox Pro physically fits best and the thickness of the plate is just perfect, while others are all wobbly (the locking hole is slightly bigger and the base plate is too thin making the lens sunken into the camera more than it should). Because of their loose connections, when you are trying to turn the focus ring by only a little amount, you will move the whole lens slightly instead of actually adjusting the focus. For this reason the focus from the others are always hit and miss, they appear to be fine (not perfectly fine) in viewfinder but the image is just slightly out of focus.This Fotodiox Pro sits very steady on the camera which also makes the image seen in viewfinder stable and sharper. Makes the handling much pleasant and the image quality so much better, the proper quality one would expect from the legendary vintage lenses. Also the built quality of this adapter is excellent, something built to last.Considering the time invested in researching into and money spent on buying the vintage lenses (the days they being dirt cheap is long gone), is it not ridiculous to ruin all the fun and image quality (which the lengthy researching is all about) just to save a few quid?

Bought this to fit an M42 lens to a Canon fit Viltrox Speedbooster. It's a nice fit on the M42 end, but there's some wiggle on the Viltrox end which isn't ideal. All my Canon lenses lock in to the Speedbooster nice and firm. Previous to this, I'd also tried one of the cheap generic adapters that you get on here and another site which also had this problem, hence trying this one. I ended up returning this as I figured there was no point paying 4x as much for something that performs the same. My experience is solely with the Viltrox Speedbooster, it looks to be okay when fitted with other Canon cameras going by the rest of the reviews. However, like I said, I didn't feel like it was a Viltrox issue since I don't have the same issue with any of my other Canon lenses.

Have spent a few hours out of the last two days trying to fit this product on to the lens. It barely fits on my 7D and is very hard to remove when I do get it on. I hope it has not caused any damage to either my lens or camera.The label says it is 'made in china' in contrast to what they advertised on their old instructional videos of how to install the adapter. My suspicion is that they have outsourced to china without sufficient testing of any kind. The result is a poor quality product, incapable of doing the task it is sold for.There are a few differences in how the product looks from the amazon images to the actual product(writing and hole placement) which looks more like the adapters on their old instructional videos on Youtube.Needless to say I shall have to return this pointless item which was a waste of my time.

I have been looking for an adaptor that I can use to adapt an RE Auto Topcor 58mm 1.4 lens to use with my Canon DSLR for months and all standard Exakta to EF adaptors do not work as the RE Topcor lenses have an extra pin on the outer part of the lens mount which will not work with standard adaptors. However this adaptor will support the lens and I am delighted with the results and having the lens element in the adaptor has not made much difference to the output I was hoping for , see image taken of my cat using the Re Auto Topcor lens on my Canon 7D

I'm so glad I found this adapter because I couldn't find anywhere else.I have canon 6d mk II and purchased x-fujinon 55mm f1.6 lens that I was told it won't fit my dslr camera.I asked on camera/lens vintage groups for advices and everywhere I heard the same thing. That this particular x-fujinon cannot be connected to dslr. Until someone guided me here. I bought it with reserve. But when it came it fitted perfectly. The lens is working great on my camera. Adapter is well build. I'm a very happy customer