Quote:
Originally Posted by leon
Pretty good shots there Doug, nice going mate,
Just one question Doug, the F/No's on your lenses, is that right, 50mm at 2.8 and 135mm at 5.6, I cant recall seeings the Pentax lenses with those ratio's. 
Cheers Leon  |
Hi leon,
Yeah, the figures are correct...that's the 50mm lens stopped down one click, 2 clicks on the 135mm lens.
I'm trying to get rid of the CA or coma or whatever the hell it is at the edge of the field of the 135mm by stopping it down more, but with little success!!
It's only really noticeable when you've got a big bright star at the edge of the field...like in the 2nd pic
All the best mate
Doug