Does this adaptor keep the pin down to allow manual apperture on automatic lenses? I got a Helios 44M-4. Thanks!
329959
Yes it does and have it for a Helios 44M too. The adapter has a ring that pushes the pin down as the lens is screwed onto it
878743
As it was said any times in the customer's reviews (including mine), the adaptor does not fit perfectly and you have to do a few tries before getting used to it. The main point is to put the lens aperture control finger on the good side of the adaptor aperture control pin to allow the aperture control dial to rotate. If it does not rotate, you are on the wrong side. Hope this will help. Richard.
653633
A full manual k mount lens has no machanical protrusions to adjust your aperture. These I feel are the safe ones the adapter is made for. I would look at the back of an EF mount lens and measure from the camera mirror when off you should be able to lift to a position that is far out as it will go. If you like it, go for it. I have a ID MK4 and will only use EF mounts even with the 1.3 sensor. Just looking at the lenses that are full manual film lenses, they look like they will work. Any other i won't comment anymore for, to many protrusions sticking to the mirror box. My manual lenses all work great with the adapter. A full manual k mount lens has no machanical protrusions to adjust your aperture. These I feel are the safe ones the adapter is made for. I would look at the back of an EF mount lens and measure from the camera mirror when off you should be able to lift to a position that is far out as it will go. If you like it, go for it. I have a ID MK4 and will only use EF mounts even with the 1.3 sensor. Just looking at the lenses that are full manual film lenses, they look like they will work. Any other i won't comment anymore for, to many protrusions sticking to the mirror box. My manual lenses all... » Read More A full manual k mount lens has no machanical protrusions to adjust your aperture. These I feel are the safe ones the adapter is made for. I would look at the back of an EF mount lens and measure from the camera mirror when off you should be able to lift to a position that is far out as it will go. If you like it, go for it. I have a ID MK4 and will only use EF mounts even with the 1.3 sensor. Just looking at the lenses that are full manual film lenses, they look like they will work. Any other i won't comment anymore for, to many protrusions sticking to the mirror box. My manual lenses all work great with the adapter. « Show Less
1679697
when I use my reverse mount ring or make the following settings f8 1/250 my kit 18-55 lens at 55mm, as is a G-type lens, there is a metal pin which placed a small paper pedaso to maintain the aperture fully open. this pin is moved from right to left in the inner edge of lens.I hope I've been helpful.
913882
You have to put your camera on manual. This adapter doesn't connect to the camera the same way an already compatible lense would.
1028085
Hi! Fit the adaptor to the body first; make sure its locked..then mount the lens. Be careful to line up the marks by loosely turning the lens over the adaptor otherwise, you can snap the pins that control the aperture in the lens. The adaptor WILL NOT FIT FL lenses, just FD...It you are having issues with mounting the adaptor to the body, over the work LOCK on the adaptor is a red dot. That the matching point to the body..Hope this helps!
1897762
Yes, this adapter allows for manual aperture control over that lens on your body while you have the lens reverse mounted.
1548768
One of mine became stuck on the lens and I worked it loose using slow but firm pressure. With the lens still attached to the adapter, you might have a little more leverage. A camera repair person might anchor the camera in a vice and dislodge the adapter with a screw driver and hammer...but VERY, VERY carefully. It's not something I would try unless you are really comfortable around tools. Wish I could be of more help.
1621263
Remove the existing ring around the lens ( mine is black and easily turns counter clockwise) The adapter then goes in it's place.
1069090
Hello hello Rmauma...!The Little push-button on the side...is working...like the release-button...on your camera...Push it In...and turn the lens...same way...as your normal lenses.If the button...or the adapter is stuck...Perhaps try...to twist the adapter...just a fraction...in both directions...while pressing...on the button.This can givethe Little locking pin...enough room...to Work.Now take the lens...with the adapter...one hand on each...close your eyes...and let your hands Work...Hope this will help...Greetings...Jakob. Hello hello Rmauma...!The Little push-button on the side...is working...like the release-button...on your camera...Push it In...and turn the lens...same way...as your normal lenses.If the button...or the adapter is stuck...Perhaps try...to twist the adapter...just a fraction...in both directions...while pressing...on the button.This can givethe Little locking pin...enough room...to Work.Now take the lens...with the adapter...one hand on... » Read More Hello hello Rmauma...!The Little push-button on the side...is working...like the release-button...on your camera...Push it In...and turn the lens...same way...as your normal lenses.If the button...or the adapter is stuck...Perhaps try...to twist the adapter...just a fraction...in both directions...while pressing...on the button.This can givethe Little locking pin...enough room...to Work.Now take the lens...with the adapter...one hand on each...close your eyes...and let your hands Work...Hope this will help...Greetings...Jakob. « Show Less
256729
Hello, to be honest I don't know, but I think YES, depends of the Lens you will add (for example mine its Macro which DO NOT retains de autofocus -see manual there are new one it does- ) the adaptor does not affect. I hope this info can help.
205779
My adapter ring had threads to screw into the end of the lens. You have to be very careful, so to not cross thread it and ruin it while attaching the ring. But mine screwed into place and has been very useful. I keep the UV filter on all the time, so I don't scratch the lens.
542015
There's a little tab that locks the adapter onto the lens. You can see it engaging if you look while connecting the adapter to the lens. The first time I tried to connect, I bent the tab trying to force the adapter and the lens wouldn't lock. I had to bend the tab upward with pliers so it would engage the lens. It was all good news from there.
1357496
There is a metal tab that clips the adapter to the lens when rotated. It's a bit tricky, but you have to hold the clip up while you rotate the adapter off of the lens. This may be really difficult if it's a snug fit. You may need needle nose pliers to compress the tab far enough.
1357495
Mina,I've noticed that these adapters fit really tight to the zeiss lens. I use them on several different zeiss lens and they all are tough to get off. With the rear element of then lens facing you, you might notice the small release pin that sticks out slightly. It's like a little price of metal that sticks out (towards the inside of the adapter ring). The idea is to gently push that in while twisting the adapter. It should come off. Just make sure that you are twisting the correct way. It's a little snug, so you will have to twist a bit more that you might like. It's nerve wracking the first time. Mina,I've noticed that these adapters fit really tight to the zeiss lens. I use them on several different zeiss lens and they all are tough to get off. With the rear element of then lens facing you, you might notice the small release pin that sticks out slightly. It's like a little price of metal that sticks out (towards the inside of the adapter ring). The idea is to gently push that in while twisting the adapter. It should come off. Just make sure that you are twisting the correct way. It's a little snug, so you will have to twist a bit more that you might like. It's nerve... » Read More Mina,I've noticed that these adapters fit really tight to the zeiss lens. I use them on several different zeiss lens and they all are tough to get off. With the rear element of then lens facing you, you might notice the small release pin that sticks out slightly. It's like a little price of metal that sticks out (towards the inside of the adapter ring). The idea is to gently push that in while twisting the adapter. It should come off. Just make sure that you are twisting the correct way. It's a little snug, so you will have to twist a bit more that you might like. It's nerve wracking the first time. « Show Less
1862158
Yes this adapter will allow you to screw any M42 lens in, For best results with aperture you want to find a way to keep pin pushed in on lens. Otherwise aperture stays looked. Other than that this fotodiox lens mount adapter works well on all canon dslr cameras. EVEN aps-c
1357497
There's a tab that locks down onto the lens preventing you from "unscrewing" the lens out counter-clockwise. If you look at it you should be able to see what I'm talking about. You can use your thumbnail to push that tab up and rotate the lens counter-clockwise to release it from the adapter. Hope that helps.