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Archive 2012f/1.2 or faster lenses wide open
p.33 #1f/1.2 or faster lenses wide open
I've heard that it is very hard to manually focus fast lenses on digital cameras, is it possible to use the stop down button on the camera and focus at the taking aperture. You could always open it up all the way after focusing.
Mar 29, 2013 at 05:56 AM
p.33 #2f/1.2 or faster lenses wide open
DaveOls wrote:
I've heard that it is very hard to manually focus fast lenses on digital cameras, is it possible to use the stop down button on the camera and focus at the taking aperture. You could always open it up all the way after focusing.
The focusing screens of DSLRs (on Nikons at least) are optimized to about f/2.5. You therefore can't properly gauge the actual depth of field at wider apertures nor confidently rely upon focus assist dot confirmation or dead reckoning for the precise focal point. Using non-native lenses on adapters necessitates stopping down for metering but is preferential when focusing to compensate for focus shift.
If its a native mount, releasing the preview button after focusing invariably results in motion and unless your on a solid tripod, you've moved it enough to lose the desired focus.
I've heard that it is very hard to manually focus fast lenses on digital cameras, is it possible to use the stop down button on the camera and focus at the taking aperture. You could always open it up all the way after focusing.
The focusing screens of DSLRs (on Nikons at least) are optimized to about f/2.5. You therefore can't properly gauge the actual depth of field at wider apertures nor confidently rely upon focus assist dot confirmation or dead reckoning for the precise focal point. Using non-native lenses on adapters necessitates stopping down for metering but is preferential when focusing to compensate for focus shift.
If its a native mount, releasing the preview button after focusing invariably results in motion and unless your on a solid tripod, you've moved it enough to lose the desired focus.
Mar 29, 2013 at 06:43 AM
p.33 #3f/1.2 or faster lenses wide open
DaveOls wrote:
I've heard that it is very hard to manually focus fast lenses on digital cameras, is it possible to use the stop down button on the camera and focus at the taking aperture. You could always open it up all the way after focusing.
with super fast lenses it's much better to focus at shooting aperture because most of them have some focus shift. also, at f/1.2 or similar dof is extremely narrow, if you focus stopped down than open up the lens you will have a much narrower dof than you did when you focused. in my experience focusing fast lenses on dslrs is only really a problem with nikon cameras because nikon doesn't offer precision matte focus screens while canon and sony do. these are screens optimized for focusing fast lenses while the stock screens that come with modern dslrs are optimized for brightness when using slow zooms. magnified liveview is definitely the easiest way to focus superfast lenses btw.
on an unrelated note, here is a shot with the rokkor 58/1.2 on a NEX:
http://farm9.staticflickr.com/8091/8598736577_7ea075a003_o.jpg
I've heard that it is very hard to manually focus fast lenses on digital cameras, is it possible to use the stop down button on the camera and focus at the taking aperture. You could always open it up all the way after focusing.
with super fast lenses it's much better to focus at shooting aperture because most of them have some focus shift. also, at f/1.2 or similar dof is extremely narrow, if you focus stopped down than open up the lens you will have a much narrower dof than you did when you focused. in my experience focusing fast lenses on dslrs is only really a problem with nikon cameras because nikon doesn't offer precision matte focus screens while canon and sony do. these are screens optimized for focusing fast lenses while the stock screens that come with modern dslrs are optimized for brightness when using slow zooms. magnified liveview is definitely the easiest way to focus superfast lenses btw.
on an unrelated note, here is a shot with the rokkor 58/1.2 on a NEX:
http://farm9.staticflickr.com/8091/8598736577_7ea075a003_o.jpg
Mar 29, 2013 at 11:44 AM
p.33 #5f/1.2 or faster lenses wide open
very nice pictures on this page.
Today I received a Pen F 42mm 1.2 from a FM member, I had always liked it when I saw it on this thread. Now it is mounted on a 4/3's , soon I will have an adaptor allowing me to use it on my Nex.
Today I received a Pen F 42mm 1.2 from a FM member, I had always liked it when I saw it on this thread. Now it is mounted on a 4/3's , soon I will have an adaptor allowing me to use it on my Nex.
Mar 29, 2013 at 07:43 PM
p.33 #7f/1.2 or faster lenses wide open
love those...do you need to modificat to have the Rokkor on the a900 or is it compatible with the a-mount? I have a A99 now, wondering if it's worth to buy one.
Apr 01, 2013 at 05:10 AM
p.33 #9f/1.2 or faster lenses wide open
toni999 wrote:
love those...do you need to modificat to have the Rokkor on the a900 or is it compatible with the a-mount? I have a A99 now, wondering if it's worth to buy one.
minolta MC mount lenses are not compatible with the minolta/sony a-mount. as with shooting it on canon you need to replace the mount. unfortunately, unlike canon there is no kit available. it is pretty easy procedure though, just involves getting an m42 to a-mount adapter to replace the minolta mount and shortening the spacer between the original mount and lens (or just replacing it with a shorter spacer).
love those...do you need to modificat to have the Rokkor on the a900 or is it compatible with the a-mount? I have a A99 now, wondering if it's worth to buy one.
minolta MC mount lenses are not compatible with the minolta/sony a-mount. as with shooting it on canon you need to replace the mount. unfortunately, unlike canon there is no kit available. it is pretty easy procedure though, just involves getting an m42 to a-mount adapter to replace the minolta mount and shortening the spacer between the original mount and lens (or just replacing it with a shorter spacer).
Apr 01, 2013 at 03:55 PM
p.33 #11f/1.2 or faster lenses wide open
Canon EF 85/1,2
http://www.pbase.com/larsjohnsson/image/149406952/original.jpg
http://www.pbase.com/larsjohnsson/image/149406952/original.jpg
Apr 02, 2013 at 09:51 AM
p.33 #12f/1.2 or faster lenses wide open
And a stunning example of why among 85s in production today, the Canon 85/1.2 is peerless.
Apr 02, 2013 at 10:23 AM
p.33 #13f/1.2 or faster lenses wide open
thanks f.hayek
one more Canon EF 85/1,2
http://www.pbase.com/larsjohnsson/image/149494164/original.jpg
one more Canon EF 85/1,2
http://www.pbase.com/larsjohnsson/image/149494164/original.jpg
Apr 02, 2013 at 11:53 AM
p.33 #14f/1.2 or faster lenses wide open
Damn you all with your 58/1.2 Rokkors!! I think all the great images are starting to catch up with me... the lust is building.
Apr 02, 2013 at 12:12 PM
p.33 #15f/1.2 or faster lenses wide open
Thank you, Lars. Just splendid subject isolation, luscious color, Bokeh that softly retains its shape and excellent subject sharpness.
Apr 02, 2013 at 12:26 PM
p.33 #16f/1.2 or faster lenses wide open
f.hayek wrote:
Thank you, Lars. Just splendid subject isolation, luscious color, Bokeh that softly retains its shape and excellent subject sharpness.
that is a very difficult background too i'd imagine with all the bright reflective surfaces.
Thank you, Lars. Just splendid subject isolation, luscious color, Bokeh that softly retains its shape and excellent subject sharpness.
that is a very difficult background too i'd imagine with all the bright reflective surfaces.
Apr 02, 2013 at 12:45 PM
p.33 #17f/1.2 or faster lenses wide open
Some of the Canon FD 55mm 1.2 S.S.C. Aspherical on nex7
all at 1.2, very little croped, very little LR4 (b/w in silver efex)
http://zneyder.de/fred/cactus.jpg
http://zneyder.de/fred/schneegloe.jpg
http://zneyder.de/fred/rost.jpg
all at 1.2, very little croped, very little LR4 (b/w in silver efex)
http://zneyder.de/fred/cactus.jpg
http://zneyder.de/fred/schneegloe.jpg
http://zneyder.de/fred/rost.jpg
Apr 02, 2013 at 02:42 PM
