peterottaway wrote:Along with the 28 - 75 mm zoom it was the most obvious Tamron and the 100 - 300 APO was strongly suggested to be from Tokina. I bought them all even though over the years they have been relegated to my second bag of A mount lenses
I did use the 100-300 zoom with my Nex 7 but you had to careful about shake with the size of the camera and no IBIS. I have got it out again to give it a workout in APS mode on my A7r II as it is so much smaller and lighter than my 70 - 400 or even the 70 - 200 zooms.
Back in 1991 I bought the Minolta 100-300mm f4.5-5.6 non-APO (no APO version at that time) in Tokyo for 42,000 yen. Small and light, but a bit wobbly when the barrel was zoomed out. I used it rarely on digital with my 7D, A100, and A700, but never liked it. Then in 2013 here in Japan I found a Tamron 70-300mm f4-5.6 in A-mount for 300 (about US$2.50) yen along with original front/rear caps, lens hood, and Kenko MC UV filter. I compared it to the Minolta 100-300mm f4.5-5.6 and it was sharper at all focal lengths, particularly 300mm and had much less CA. Also, the AF was as good or better. A bit larger and heavier, but also built better with no wobble like the Minolta. I still have the A-mount gear back in the States so it isn't being used now, but I did use the Tamron on the A700 on a road trip one time not long after buying it.