Minolta 300mm f2.8

This is a very sharp, durable well build telephoto lens. Notice the two-screw Kirk hex plate. It prevents the lens from loosening up from the tripod when carried over the shoulder.

Kenko 20 and 36 mm extension tubes.

Extension tubes alowe closer focusing. Imagine having a 400mm lens pointed and focused a cross a river waiting for a limpkin to emerge. Unexpectedly a beutuiful dargonfly lands 3 feet from your camera. That is when you slowly put the extension tubes on.

External flash.

SONY has done a great job trying to keep the (old) Minolta accesories compatibile with Sony bodies. The only thing that does not work is the TTL meatering with Minolta flashes.

Sigma 70-2100mm with extension tubes.

The Sigma 210-700 mm f2.8 lens has a removable tripod ring. The ring can be used with extension tubes and other lenses.

Sigma 10-20mm f 4.5-5.6

Designed for DSLR only. My SONY A100 has the 1.5 lens extension factor which still makes it a great 15-30mm lens,especially with the Tiffen wide angle 77mm polarizing filter.

Sigma 70-210mm f2.8 zoom lens.

Excellent glass, heavy metal build, nice removable tripod ring that can be used with other lenses/extension rings.

Minolta teleconverters.

The 1.4x on the 300mm f 2.8 is an excellent combination, sharp and fast focusing. 2x slows down focusing and is difficult to hold steady with the 300mm lens, even on a heavy tripod.

Tokina 20-35mmm, f 4.5-5.6 SLR lens.

Very well made lens, both glass and rings (all metal.)

Minolta 100mm 1:1 macro lens

A lens of outstanding mechanical quality and sharpness. In the picture it is shown with Kenko extension tubes for magnification beyond 1:1.