View previous topic :: View next topic |
Author |
Message |
skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
|
Posted: Thu Jun 06, 2013 12:29 pm Post subject: The difference, large aperture and small one. CZJ 29mm |
|
|
skida wrote:
I can't remember the if the lens was wide open or just near wide open, but the doorway was in shadow on an overcast day. Note the right hand side (bottom on portrait orientation):
Main facade, La Seu de Palma by skida, on Flickr
Main door, La Seu de Palma by skida, on Flickr
This shot was taken in bright sunlight, so must be f11 or f16
When I win the lottery by skida, on Flickr _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ |
|
Back to top |
|
|
berraneck
Joined: 24 May 2009 Posts: 972 Location: prague, czech republic
|
Posted: Thu Jun 06, 2013 3:18 pm Post subject: |
|
|
berraneck wrote:
this is the reason why I donated my CZJ 29mm. same problems with abnormal out-of-focus areas. _________________ equipment doesn´t count, good photographs do |
|
Back to top |
|
|
Excalibur
Joined: 19 Jul 2009 Posts: 5017 Location: UK
Expire: 2014-04-21
|
Posted: Thu Jun 06, 2013 4:13 pm Post subject: |
|
|
Excalibur wrote:
H'mm not a lens to use wide open........nice shots though. _________________ 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. |
|
Back to top |
|
|
Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
|
Posted: Thu Jun 06, 2013 8:32 pm Post subject: |
|
|
Attila wrote:
Excalibur wrote: |
H'mm not a lens to use wide open........nice shots though. |
+1 most subject, lens , not for wide open especially with wide lenses. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
Back to top |
|
|
ManualFocus-G
Joined: 29 Dec 2008 Posts: 6622 Location: United Kingdom
Expire: 2014-11-24
|
Posted: Thu Jun 06, 2013 8:57 pm Post subject: |
|
|
ManualFocus-G wrote:
It's a Pentacon 29/2.8, what did you expect? _________________ Graham - Moderator
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
|
Back to top |
|
|
Lloydy
Joined: 02 Sep 2009 Posts: 7787 Location: Ironbridge. UK.
Expire: 2022-01-01
|
Posted: Thu Jun 06, 2013 9:59 pm Post subject: |
|
|
Lloydy wrote:
Famously soft around the edges, but still a lens you can forgive when you see the center sharpness. Well, sometimes you can. _________________ 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 |
|
Back to top |
|
|
iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15679
Expire: 2014-01-07
|
Posted: Thu Jun 06, 2013 10:26 pm Post subject: |
|
|
iangreenhalgh1 wrote:
Needs to be closed to 5.6 before the soft corners go away. Some copies, they stay quite soft, even stopped down. The reason forthis is field curvature.
I think there is a de-centering issue with many copies of this lens as some are definitely worse than others. The first shot, with the soft bottom right does look like a de-centred lens to me. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
|
Back to top |
|
|
skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
|
Posted: Fri Jun 07, 2013 12:21 am Post subject: |
|
|
skida wrote:
The lens looks to be un-tampered with so I am guessing this is how it came out of the factory. I thought people were probably exagerating a little about the softness wide open until I saw these results! I rarely have any need to shoot at large apertures and the third shot makes me think the lens is worth keeping and using due to the colour rendition and sharpness at smaller apertures. Thanks for all the comments folks. _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ |
|
Back to top |
|
|
Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
|
Posted: Fri Jun 07, 2013 12:34 am Post subject: |
|
|
Attila wrote:
+1 on skida opinion _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
|
|
Back to top |
|
|
Pancolart
Joined: 04 Feb 2008 Posts: 3702 Location: Slovenia, EU
Expire: 2013-11-18
|
Posted: Fri Jun 07, 2013 6:41 am Post subject: |
|
|
Pancolart wrote:
Every 2.8/29mm acts as a separate specimen. From entirely faulty toy crappy samples to above average wide-open kick-ass brag about it. I used to believe it's all about rear elements combo centering with 3 small screws. Sadly there is more to it. _________________ ---------------------------------
The Peculiar Apparatus Of Victorian Steampunk Photography: 100+ Genuine Steampunk Camera Designs https://www.amazon.com/dp/B0B92829NS |
|
Back to top |
|
|
DR.JUAN
Joined: 08 Feb 2013 Posts: 661
|
Posted: Fri Jun 07, 2013 11:39 am Post subject: |
|
|
DR.JUAN wrote:
Nice colors. Was a massive lens in the 60's. The old copies should be better than newer.
My four ones were all descentered elements. It eas a shame. With the sony nex the soft borders don't be an excesive problem. |
|
Back to top |
|
|
skida
Joined: 02 Mar 2012 Posts: 1826 Location: North East England
|
Posted: Mon Jun 10, 2013 4:21 pm Post subject: |
|
|
skida wrote:
iangreenhalgh1 wrote: |
The first shot, with the soft bottom right does look like a de-centred lens to me. |
Is this something that can be fixed, Ian, or is it just something to be lived with? _________________ Lots of 35mm Film Cameras
Lots of Lenses
New Vlog on Youtube called "The Olduns Shot"
https://www.youtube.com/channel/UCBHCOHaIrcYr7s3is1EcqxQ |
|
Back to top |
|
|
ManualFocus-G
Joined: 29 Dec 2008 Posts: 6622 Location: United Kingdom
Expire: 2014-11-24
|
Posted: Mon Jun 10, 2013 7:24 pm Post subject: |
|
|
ManualFocus-G wrote:
It took me 7 copies to find one that wasn't decentered But the good copy has lovely colours and sharpness in the middle _________________ Graham - Moderator
Shooter of choice: Fujifilm X-T20 with M42, PB and C/Y lenses
See my Flickr photos at http://www.flickr.com/photos/manualfocus-g |
|
Back to top |
|
|
Eugen Mezei
Joined: 17 May 2008 Posts: 266
|
Posted: Mon Jun 10, 2013 8:29 pm Post subject: |
|
|
Eugen Mezei wrote:
The lens has clearly decentered elements.
This lens can be very easily opened. A twist and it is separated in two. Not even necessary to fiddle around with a screwdriver. Maybe this is the reason so much copies are "faulty".
I had luck and got one that is fine at first try. This was 1994, before the bad reputation of the lens spread on the net.
Some years ago I bought another copy, it has scratches on the lens and the housing is ugly too, but still no problem with the produced images.
The 29 mm Pentacon may not be a stellar lens but I still like them.
Does the 28 mm version in PB also suffer from bad reputation? I'm thinking about buying one. |
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|