OM mount Sigma 400/5.6 APO

The UPS guy just dropped this off. It was on sale at 254 USD, plus 57.95 s&h at KEH. It's in excellent condition. My initial impression is that it's well built, tiny and light for a 400mm lens. Some quick daylight shots on an E-620 show good control of colour, but contrast is a bit lacking.

It goes into the pipeline to be tested for astro use.