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Old Wednesday 15th November 2017, 19:27   #24
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Join Date: Jul 2005
Location: Twin Falls
Posts: 1,868
Originally Posted by maico View Post
I used to have a mint Pentax 7x50 BIF since sold on Ebay.

Pros: Well made and sharp

Cons: slightly narrower FOV than other similar designs, blue single coated elements, distinct green cast (was this deliberate to cut through marine haze or night use ?)

The more expensive and still in production (around 450 GBP in Japan) Nikon 7x50 IF SP, shown in section bellow, is a way better performer with field flattener doublet making the edges as sharp as the centre and modern coatings. Still no ED (extra low desperation glass) so there is some CA off axis)

A Prostar without the stripe on the objective beauty ring or cost?

"The only thing worse than being blind is having sight but no vision"--Helen Keller
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