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skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
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Posted: Thu Jan 09, 2014 2:59 pm Post subject: The frustrations caused by lenses that aren't right |
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skida wrote:
You travel to the place you want to shoot. You look carefully for an idea. You wander around until you find the right viewpoint. You carefully frame the scene. You wait patiently until the light and/or subject looks the way you want it. You shoot. You return home full of expectation. You get it on to the computer and view it. It disappoints:
1. Hanimex 4.5/80-210
Watched by giants by skida, on Flickr
2 CZJ 2.8/29, supposed to be hyperfocal range
Rock Pool by skida, on Flickr
I knew the Hanimex was highly suspect, having been dropped hard by the donor, but I hoped I could work around the focus problem. The Zeiss/Pentacon was a surprise in that it looked to be fine, but the result shows that the focus scale isn't accurate for some reason. Both shots Practika MTL50 and Vista 200. _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ
Last edited by skida on Sat Jan 11, 2014 4:27 pm; edited 1 time in total |
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luisalegria
Joined: 07 Mar 2008 Posts: 6602 Location: San Francisco, USA
Expire: 2018-01-18
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Posted: Thu Jan 09, 2014 3:57 pm Post subject: |
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luisalegria wrote:
Always review the shot on the spot, zooming in to verify focus.
That's one of the huge advantages of digital in that you can spot and correct errors immediately.
I have seen many lenses with a focus scale that's off. In one case I have a lens where infinity seemed correct on film and 6mp digital but turned out to be off when zooming in at 12mp. But I could see that problem on the screen. _________________ I like Pentax DSLR's, Exaktas, M42 bodies of all kinds, strange and cheap Japanese lenses, and am dabbling in medium format/Speed Graphic work. |
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Lightshow
Joined: 04 Nov 2011 Posts: 3666 Location: Calgary
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Posted: Sat Jan 11, 2014 11:56 am Post subject: |
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Lightshow wrote:
The incorrect thickness of the adapter will throw the scale way off, and if the lens was adjusted to match that adapter, it will now be way off on its native mount. _________________ A Manual Focus Junky...
One photographers junk lens is an artists favorite tool.
My lens list
http://www.flickr.com/photos/lightshow-photography/ |
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skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
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Posted: Sat Jan 11, 2014 4:26 pm Post subject: |
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skida wrote:
They are both M42 lenses on an M42 Practika MTL50. The Hanimex has suffered some internal damage to the focusing system when dropped. The CZJ Wideangle just doesn't seem sharp anywhere. I am not too bothered - they were a gift, and I do have another 2.8/29 which is fine above f4. The Pentacon MC 1.8/50 (number 4 in my collection) is perfect. _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ |
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Excalibur
Joined: 19 Jul 2009 Posts: 5017 Location: UK
Expire: 2014-04-21
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Posted: Sat Jan 11, 2014 7:49 pm Post subject: |
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Excalibur wrote:
What's is annoying is infinity is not at the infinity stop on the lens....you would think it wouldn't make any difference (as you are not doing close ups) but some of my shots on some lenses are not sharp unless I focus just before the lens stop. _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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Lloydy
Joined: 02 Sep 2009 Posts: 7788 Location: Ironbridge. UK.
Expire: 2022-01-01
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Posted: Sun Jan 12, 2014 12:43 am Post subject: |
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Lloydy wrote:
I've had some good results from the CZJ 29. It has a reputation for being softer at the edges, so it's good and sharp on the NEX and K10. The biggest fault is that I find it low contrast, but that's easy to fix in pp.
I'd have thought it should be good on the MTL-5 as they have an excellent focusing screen. _________________ LENSES & CAMERAS FOR SALE.....
I have loads of stuff that I have to get rid of, if you see me commenting about something I have got and you want one, ask me.
My Flickr https://www.flickr.com/photos/mudplugga/
My ipernity -
http://www.ipernity.com/home/294337 |
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skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
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Posted: Sun Jan 12, 2014 1:38 am Post subject: |
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skida wrote:
The MTL50 has an excellent 45 degree double split prism, but the Rock Pool shot was taken using Hyperfocal, though I did use the DOF preview and it looked OK, I can't understand why the rock is softer than stuff in front and behind. I just think the lens is a wrong'n. _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ |
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Excalibur
Joined: 19 Jul 2009 Posts: 5017 Location: UK
Expire: 2014-04-21
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Posted: Sun Jan 12, 2014 11:00 am Post subject: |
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Excalibur wrote:
atarget wrote: |
Excalibur wrote: |
some of my shots on some lenses are not sharp unless I focus just before the lens stop. |
use your legs then |
or better still adjust the infinity stop so the subject is in focus (at the stop).......I suppose for each of my annoying lenses there is a way of doing this esp my CZJ 35mm f2.4 _________________ Canon A1, AV1, T70 & T90, EOS 300 and EOS300v, Chinon CE and CP-7M. Contax 139, Fuji STX-2, Konica Autoreflex TC, FS-1, FT-1, Minolta X-700, X-300, XD-11, SRT101b, Nikon EM, FM, F4, F90X, Olympus OM2, Pentax S3, Spotmatic, Pentax ME super, Praktica TL 5B, & BC1, , Ricoh KR10super, Yashica T5D, Bronica Etrs, Mamiya RB67 pro AND drum roll:- a Sony Nex 3
.........past gear Tele Rolleiflex and Rollei SL66.
Many lenses from good to excellent. |
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