Tamron AF 28-300mm f/3.5-6.3 XR Di LD Aspherical Macro

I don’t have the DI version, so I must have the previous version. I know it came with three older Sony A cameras used of the APS-C chip size or smaller; last year, in a auction as one giant package. I kept it, BUT I had a Sony Nex 7 at the time so it’s NOT a ” A” mount lens. Recently I found it again and this time I put it on a SONY SLT unit LA-EA4 to mount to a FE full frame Sony A7r. Well I was shocked, the LA-EA4 really helps the lens to focus well and the photos are so sharp, I was shocked. I grabbed my color resolution / fine line 800/lines chart shot two identical F.L. & aperture shots, One with the Zeiss loxia 50/2 @ F:7 and one with the 28~300mm Tamron at 50/7. I couldn’t see much difference, even at full magnification at 14.4x on my back TTF screen. The 800 lines were fully clearly visible. I must have a good version or example, since most users have negative things to observe? I believe the Sony SLT LA-EA4 optical unit made the difference in this lenses abilities. My lens reads: Tamron AF Aspherical XR LD (IF) 28-300mm 1:3.5-6.3 Macro, bottom of lens says A06. If your reading this and you know a Sony Full Frame mirrorless camera user, tell them this combination really works very well. Trade secret, these lenses are dirt cheap on ebay used, in Sony A mount. Sleepers!