Tamron SP AF 28-75 f2.8
Posted on: Wed, 05/28/2008 - 9:34pm
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Tamron SP AF 28-75 f2.8
I was wondering if anybody has the Tamron SP AF 28-75 f2.8 lens. I have the KM version of it and I love the optical quality a great deal. However, I was wondering how many rotations the AF screw has on the Tamron vs the KM. Can anybody tell me how many screw turns the Tamron 28-75 f2.8 has? I was thinking of getting it as a back up lens and I wanted to know if there was a difference in the AF gearing. The KM AF 28-75 f2.8 has in the order of 3-1/3 screw turns if anyone was wondering.
Regards,
Niko
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Sony Alpha 700 DSLR + Vertical Grip|Konica Minolta Maxxum 5D DSLR + OwnUser Vertical Grip|Konica Minolta AF 28-75 f2.8 (D) Zoom Lens|Konica Minolta AF 18-70 f3.5-5.6 (D) Zoom Lens|Minolta AF 50 f1.7 Prime Lens|Minolta AF 70-210 f4 Telephoto Zoom Lens|Sigma APO 100-300 f4 EX DG Telephoto Zoom Lens|Sigma 10-20 f4-5.6 EX DC Wide-Angle Zoom Lens|Sigma 70 f2.8 EX DG Macro Lens|Sigma 1.4X EX DG Teleconverter|Sony HVL-F56AM Flash|Minolta 3600 HS(D) Flash (2 qty)|Slik Pro 340DX A.M.T. Tripod|Slik Pro Pod 600 A.M.T. Monopod|Tamrac Expedition 5 Back Pack|www.flickr.com/photos/xanadu_photography
Wow! Is there no one who owns this lens that can answer my question?
Niko
Sony Alpha 700 DSLR + Vertical Grip|Konica Minolta Maxxum 5D DSLR + OwnUser Vertical Grip|Konica Minolta AF 28-75 f2.8 (D) Zoom Lens|Konica Minolta AF 18-70 f3.5-5.6 (D) Zoom Lens|Minolta AF 50 f1.7 Prime Lens|Minolta AF 70-210 f4 Telephoto Zoom Lens|Sigma APO 100-300 f4 EX DG Telephoto Zoom Lens|Sigma 10-20 f4-5.6 EX DC Wide-Angle Zoom Lens|Sigma 70 f2.8 EX DG Macro Lens|Sigma 1.4X EX DG Teleconverter|Sony HVL-F56AM Flash|Minolta 3600 HS(D) Flash (2 qty)|Slik Pro 340DX A.M.T. Tripod|Slik Pro Pod 600 A.M.T. Monopod|Tamrac Expedition 5 Back Pack|www.flickr.com/photos/xanadu_photography
I figured someone here would have it.
I don't have a copy of it personally, but if I did I would tell you how many screw turns it is. Typically Tamron is a bit lower geared and has more screw turns than the competition. I think this helps with accuracy of focus more and they emphasize that.
If I can find out for you Niko, I will.
Carl
-AlphaMountWorld Chef
"Would you care for an hors d'oeuvre, Dr. Seward?"
Thanks Carl. I appreciate it.
Sony Alpha 700 DSLR + Vertical Grip|Konica Minolta Maxxum 5D DSLR + OwnUser Vertical Grip|Konica Minolta AF 28-75 f2.8 (D) Zoom Lens|Konica Minolta AF 18-70 f3.5-5.6 (D) Zoom Lens|Minolta AF 50 f1.7 Prime Lens|Minolta AF 70-210 f4 Telephoto Zoom Lens|Sigma APO 100-300 f4 EX DG Telephoto Zoom Lens|Sigma 10-20 f4-5.6 EX DC Wide-Angle Zoom Lens|Sigma 70 f2.8 EX DG Macro Lens|Sigma 1.4X EX DG Teleconverter|Sony HVL-F56AM Flash|Minolta 3600 HS(D) Flash (2 qty)|Slik Pro 340DX A.M.T. Tripod|Slik Pro Pod 600 A.M.T. Monopod|Tamrac Expedition 5 Back Pack|www.flickr.com/photos/xanadu_photography
Okay, I found out how many screw turns the lens has from a fellow at www.dyxum.com. The lens matches the Konica Minolta version with 3-1/3 turns. It would seem that mechanically (auto focus wise) the lenses are a match. Exterior finish is different of course. I wish that the zoom lock was part of the KM package as it is with the Tamron.
Regards,
Niko
Sony Alpha 700 DSLR + Vertical Grip|Konica Minolta Maxxum 5D DSLR + OwnUser Vertical Grip|Konica Minolta AF 28-75 f2.8 (D) Zoom Lens|Konica Minolta AF 18-70 f3.5-5.6 (D) Zoom Lens|Minolta AF 50 f1.7 Prime Lens|Minolta AF 70-210 f4 Telephoto Zoom Lens|Sigma APO 100-300 f4 EX DG Telephoto Zoom Lens|Sigma 10-20 f4-5.6 EX DC Wide-Angle Zoom Lens|Sigma 70 f2.8 EX DG Macro Lens|Sigma 1.4X EX DG Teleconverter|Sony HVL-F56AM Flash|Minolta 3600 HS(D) Flash (2 qty)|Slik Pro 340DX A.M.T. Tripod|Slik Pro Pod 600 A.M.T. Monopod|Tamrac Expedition 5 Back Pack|www.flickr.com/photos/xanadu_photography