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nemesis101
Joined: 25 Mar 2008 Posts: 2050 Location: Oregon USA
Expire: 2015-01-22
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Posted: Tue Jun 08, 2010 10:57 pm Post subject: [AF] Tamron AUTOFOCUS Adaptall-2 70-210mm zoom (47a) |
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nemesis101 wrote:
These are pics of the lens and from the lens.
They are straight from camera (test shots) with NO PP whatsoever other than that applied in-camera as they are JPGs and resizing to abide by forum rules...
In the flower set the point of focus was the leading petal on the iris, on the truck photos it was the right hand edge of the spare tire carrier.
I noticed some CA (purple fringing) on the tire carrier along the upper edge, even at f8 and the light was overcast and not too contrasty.. otherwise the lens seems fine as an optical device and the focus seems quite reasonable, smooth and accurate?
Doug
Iris test pictures
47a f4 at 3 meters iso 100
47a f5.6 at 3 meters iso 100
47a f9.5 at 3 meters iso 100
_________________ Lenses and cameras:
Amateurs worry about equipment
Pros worry about money,
Masters worry about light. |
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nemesis101
Joined: 25 Mar 2008 Posts: 2050 Location: Oregon USA
Expire: 2015-01-22
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Posted: Tue Jun 08, 2010 11:11 pm Post subject: Tamron 47a using zoom |
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nemesis101 wrote:
All pics resized (downsized 50% using bicubic) to adhere to forum posting policies.
First at 70mm:
f4.5 at 70mm from 6 meters
f8 at 70mm from 6 meters
f4.5 at 210mm from 6 meters
f8 at 210mm from 6 meters
_________________ Lenses and cameras:
Amateurs worry about equipment
Pros worry about money,
Masters worry about light. |
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Attila
Joined: 24 Feb 2007 Posts: 57840 Location: Hungary
Expire: 2021-11-18
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Posted: Tue Jun 08, 2010 11:19 pm Post subject: |
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Attila wrote:
Pretty nice result from a very unique lens, thank you for sharing! _________________ -------------------------------
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
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Blue
Joined: 26 Jul 2008 Posts: 304
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Posted: Thu Jul 01, 2010 6:08 pm Post subject: |
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Blue wrote:
I'm surprised that there is a sticker on this lens. That implies it was made before 1990! Therefore, this lens should be in the adaptall-2.org site but isn't . . . yet.
_________________ Pentax: K, H2, H3, S3, SV (late & early), SV black, Spot F, K2 chrome, K2 black, ME F, SuperProgram, 6x7, Auto 110, Asahiflex IIB late
Pentax "modern": MZ-3, *istD, K200d, K20d
Mamiya: C3 TLR, NC1000
Canon: EOS 10s, AE-1
Chinon: CP-7m
IKON: Contax D, Praktiflex FX & Victar 50mm f2.9
Contessa-Nettel Piccolette - 7.5 cm Tessar & Compur shutter
Rangefinders: Argus C4 and Ricoh Five-One-Nine |
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koji
Joined: 21 Jul 2008 Posts: 2106 Location: Hiroshima, Japan
Expire: 2012-12-27
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Posted: Thu Jul 01, 2010 7:12 pm Post subject: |
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koji wrote:
I am very grad when I saw the long lost sibling ie. Tamron 47a for my PRAKTICAR(s).
Here is mine>
This one is closer to the original 47a, I guess. It has power zoom too, but cannot do this at the same time with AF.
This lens starts AF automatically whenever I half-press the shutter button of any PRAKTICA PB camera.
The circuit of this lens senses the electric current in the camera through three electric contacts on the lens, which is used for aperture.
A sample shot at F5.6 & 200mm end, looks surprisingly good with Canon 5D + AF55-200/4.5.
I have long suspected these lenses were made by Tamron, now it has been proved. _________________ Our Home Page has 18,200 photos in 575 directories today.
Lenses: https://www.pbase.com/kkawakami/top_level_my_lenses
Last edited by koji on Thu Jul 01, 2010 11:21 pm; edited 1 time in total |
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nemesis101
Joined: 25 Mar 2008 Posts: 2050 Location: Oregon USA
Expire: 2015-01-22
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Posted: Thu Jul 01, 2010 10:23 pm Post subject: |
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nemesis101 wrote:
Ha ha
Are you implying my lens has illegitimate siblings?
I am amazed and dismayed.. I always though they were well brought up!
lol
Doug
koji wrote: |
I am very grad when I saw the long lost sibling ie. Tamron 47a for my PRAKTICAR(s).
Here is mine>
This one is closer to the original 47a, I guess.
This lens starts AF automatically whenever I half-press the shutter button of any PRAKTICA PB camera.
A sample shot at F5.6 & 200mm end, looks surprisingly good with Canon 5D + AF55-200/4.5.
I have long suspected these lenses were made by Tamron, now it has been proved. |
_________________ Lenses and cameras:
Amateurs worry about equipment
Pros worry about money,
Masters worry about light. |
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