I have the Pentax 20x60 PCF 11's. They are hi quality binos. They have the Pentax SMC lens coatings and are among the best I have seen. The image is very sharp and clear to edge. The main concern / issue is the FOV at 2.2 degrees [ the Afov is 44 degrees] This gives a narrow 'tunnel' like image which you may like / dislike - user preference here. The other issue is at 60mm and 20x magnification the view is not overly 'bright'.
I have viewed thru some Ultra 15x70 binos - but do not own one. These binos are the latest design with the best specs available. The web reviews are very favourable. Again the image is very sharp / contrasty and ' allmost ' clear to edge. The image is brighter then the Pentax's. The FOV is 4.4 degress [the Afov is 67 degrees] this gives a much broader / panoramic view.
The Ultras are more costly at $A470 - the Pentaxs are $A350 [ Bintel ]. Personally I prefer the Ultra 15x70's - even at the extra cost. This is primarily related to the broader and brighter image. The Ultra 15x70's really are among the best hi quality all round astro binos you can get.
Good luck.
Last edited by chris lewis; 16-10-2007 at 07:36 AM.
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