Regarding : Tamron Teleconverter1.4C-AFT MCA
“III: "Other" Third Party T-cons
We are currently putting together info on other third party manufacture T-cons,. compatibility, autofocus data etc. Please contribute any direct experience or info”
Just from my own Experience with several Lenses. The Tamaron AF- Teleconverter1.4C-AFT MCA has worked with
Canon 50mm F/1.8
Canon 85mm F/1.8
Canon 70-200mm F/4.0
Tamron 28-75mm F/2.8
Sigma 70-200mm F/2.8
1 Price is always a consideration, it works about how I expected, i.e. you get what you pay for. Hey, I lucked into this converter for $25.00 from one of our members, I couldn’t go wrong for that price.
2 It has done what Tamron said it would.
3 For the casual user it probably will be fine, (Not the pro which I am not) the picture is acceptable
My only negative comments have been.
1 does not report the focal length.
2 Tends to make whites or any bright-light or reflective colors appear brighter than they should be.Especially in bright light or bright days. I see halos. Sometimes.
3 Pictures are perceptually a little less sharp than when not using it. Hey, it’s a Tele converter this happens right? I would hope that the more expensive Tamron models, as well as Canon and other 3rd party are sharper?
Should some one buy it?
Based on your needs and pocket book it is acceptable.
Canon; 6D, 60D, 28 f/2.8 IS, 35 f/2.0 IS, 50 f/1.8 and 1.4, 28-70Lf/2.8, 85 f/1.8, 135Lf/2.0, ST-E2, 580ex