TAMRON SP 90MM F2.5 MACRO LENS.
DrOrloff's photos of fungi and the dragonfly are gorgeous! Is your lens a more recent, better bloomed one, or does it not show any flare anyway?
Martin
Thanks. I have never noticed any problem with flare.
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Martin
Tamron SP AF 90mm f/2.8 Macro 1:1 Di Lens for Pentax £248.99 Brand new www.onestop-digital.com/index.php I purchased one in Jan of this year, I think P&P came to £10 so even at £260 it was a very good deal and it arrived in 2 days, now thats service.
The other option I've been offered is a Phoenix 100mm f3.5 from a guy in the States correct me if I'm wrong but I believe this is the same as the Cosina/Vivitar lens?
The 100mm Cosina/Vivitar/Phoenix is supposed to be pretty damn good, especially for the price. By far the least expensive AF macro lens.
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Using my PKA adaptor on the Tamron 90mm f2.5. It shows a max available aperture on my K-x of f4.0.
Your PK/A mount may not be working properly - some of them appear to suffer from an issue where threadlock has seeped through from a screw near the electrical contacts on the mount face. This threadlock isn't easily visible but effectively insulates part of the metal mount from one of the contacts on the camera which causes spurious behaviour with the aperture readings.
If you clean the area of the metal Adaptall mount flange with a solvent based cleaner (such as nail varnish remover) about 15mm each side of the electrical contacts, it may help. I have 'fixed' one of my PK/A mounts with a similar problem this way. Some people advocate cleaning the mount face near the electrical contacts with fine emery paper, but I wouldn't recommend this because it damages the surface of the mount and also creates dust that could get into the lens or camera body.
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BELMULLET