Yeah, I'm happy with it - it's a Sigma f8 mirror lens. As Otto pointed out, a 100% crop is slightly less sharp Very happy with the image quality though - sure, it's less sharp and contrasty than a Ł1500+ refractive prime, biut it looks pretty good considering it was Ł150.
I'm shooting on a Pentax k20D, so was able to use the in body stabilisation which gives a few stops advantage. Resting on a pillar gave me the other couple of stops I needed.
Bought the lens because I'm going to the shuttle launch in a couple of weeks, so wanted to be able to get some momentos of it. I'll be miles away, so there isn't any point in spending shedloads of money on a lens for this - it's an afternoon launch, so heat haze through the atmosphere will limit any lenses performance.
#6096334, By Cuchulainn The Photo Gallery
Cuchulainn 845 posts
Seen 4 days ago
Registered 14 years ago