|
|
|||||||
|
If you look on page 1 of this tread you'll see some images taken with the 7-14 at 7mm I's very fast at f4.o, the 14mm Heliar is 5.6 I think. but it suffers a lot of exposure variation between the centre and edge of the frame, so may also need a special Schott filter which is very expensive. It brings the speed down to f11.o though! |