Will it open up aperture as low as f1.2?
1818946
I think it should be fine I used a 35 mm 1.4 with no vin and a 50 1.4 in the pentax version. no issues on emount granted I was using a c crop sensor im not sure what it will do on a full sized 35 ie: sony a7 but I will find out in a couple of weeks ...
1818947
good question. the iris in this unit is theoretically F1.0 and should pass 100% of whatever the lens is giving you to begin with with w/o loss until you close it down.. just not something I ever worried about.
68655
No, aperture is controlled manually. FD lens cannot be controlled automatically.
2055712
Yes, no matter how low the aperture they can't go past 2.8 and no auto focus.
1789852
Max aperture is f1.2 and will always gather light accordingly, it is not impacted by any 'equivalency' or 'x2'.
794419
I have not seen any problems yet, but I'm only using it on my macro lens and a low f-stop for a good depth of field. I haven't tried a wide open f-stop yet.
1186462
My answer to this is to set the lens at F8 either with Aperture Priority or Manual Mode. Having the lens wide open at F 4.5 just doesn't give the best results IMO. The results of learning this lesson is in the early results of seeing soft images at the edges of the pictures and loss of sharpness. F8 makes all the difference with this lens at least for me.
1058318
Not for me. I tried to use old (1970's) Asahi/Takumar lenses on a Nikon camera and unless it is a sunny day, or inside auxiliary lighting is very good, I cannot open the aperture for enough light even manually.
433099
Yes it will, with the caveat of course that your lenses were made before the days of autofocus and auto aperture,so of course those options won't be available. Just be sure to enable the "use aperture ring" option in the menus first.
1837117
It is not a "fixed" F/2.8. It is a "constant" F/2.8 which does not change when zoom from 24 to 70. It still has the smallest aperture of F/22 that you can use to gain all the DOF you want.
2022114
I bought mine for a 70-200af lens so I don't really know but if I were to guess it might have trouble with the m/a mode.
357025
I believe it will only auto focus up to 5.6 f stop. Sorry I just don't know any more.
509388
If you mean night vision by low light conditions then its pretty good for that. You would have to shoot it open around f1.2-1.8 even f2 its great. The large aperture gives you the ability to do so. Your DOF will be a bit shallow but the ability to shoot faster with a lower Iso will make up for it.Also remember its a manual focus lens.
1770040
Thank you for your inquiry. In regards to your question, the minimum aperture of this lens is f/22. Maximum being f/1.8, if you have any additional questions or concerns please feel free to contact us directly at 800-991-3350.
1776935
I do not have the 1.2 I do have a 50mm 1.8 and a 135mm 2.8 and I use this adapter with a T4i and the quality is amazing. The FD lenses were made really well. The only thing with a 1.2 the depth of field is so shallow you are likely going to blur out half of your subject. You may not want to shoot that lens wide open. However if you do I am sure the photos will look amazing. I hope this helps you out.
872972
Not well quite simply. The maximum lens aperture is not a small enough f/stop number, you will lose autofocus and unless shooting in very bright light on high contrast subjects even manual focusing may be difficult.
1070793
This lens is manual focus and manual aperture. So it won't AF or automatically adjust the aperture. It works in full manual mode very nicely but that may not be what you want to do.
1049217
I have the type 2 adapter, which has a ring of metal at the bottom of the threads to push in the aperture pin. If you have a pin, you'll need the type 2; otherwise, your lens will be stuck wide open (maximum aperture, lowest f/number).