How do you feel about your NL 8x42 a year or two down the line? (2 Viewers)

[Maljunulo]

I think it’s all poppycock ….. good optics are good for any purpose.

 

[james holdsworth]

I think it’s all poppycock ….. good optics are good for any purpose.

Not true, IMO - a binocular with slow focus and long travel is pretty useless for me if being used for insects and birds.

 

[henry link]

Hi Henry, many thanks for your response to my query re the false pupils on the NL 8x42. I accept all that you say, but wonder why false pupils are a regular feature of Allbinos reviews if they are not an indication of viewing impairment. Why, then, do they consistently feature in their reviews.

They should have figured out how glare works by now, but there are many older reviews that are clueless on the subject. Check out the photo below of the interior of the right side of a Zeiss 8x56 Dialyt from Allbinos' review. Those are real false pupils alright, but they form about 5mm beyond the edge of a 7mm exit pupil. They could never enter the pupil of an eye even if it were fully dilated and besides that they also move behind the eyepiece field stop when the eye is positioned at the eyepiece, so they're completely harmless, held at bay by both a belt and suspenders. Under the photo the text incorrectly states "Clear false pupils are a problem", apparently without anybody checking to see whether they actually are a problem.

Real glare problems invariably come from interior reflections at or very near the exit pupil edge and often don't even show up in these Allbinos photos because the bright arcs of reflection at the exit pupil edge bleed together with the overexposed image of the exit pupil.

 

[elkcub]

... so they're completely harmless, held at bay by both a belt and suspenders.

Henry,
You do have a way with words.
Ed