Diopter message in store discussion board (1 Viewer)

Tero

Retired

• May 22, 2010

• #1

Can anyone figure out what this guy is explaining?
http://www.opticsplanet.com/msgboard/about1-15038.html#p40057

I tried to answer sort of generally.

 

H

henry link

Well-known member

• May 22, 2010

• #2

The guy is doing things backwards for this particular binocular. Since the diopter adjustment is on the left eyepiece (instead of the more usual right) he should adjust the center focuser to reach focus with the right side first (with the left side covered). Then adjust the diopter ring on the left eyepiece to bring the two sides to common focus.

 

Tero

Retired

• May 22, 2010

• #3

Yes, I thought the left diopter was a little odd. Thanks.

 

tpcollins

Well-known member

• May 22, 2010

• #4

The diopter on my Bushnell 7x26 Custom Compact is on the left - makes perfect sense to me.

 

Kevin Purcell

Well-known member

• May 23, 2010

• #5

Diopter change on the right has been the "standard" for a long time.

I had some problems with the internal focus (so you can't see which eyepiece is being adjusted) Leupold Cascades I bought from FrankD. "The diopter adjust doesn't seem to work", I said, "It does. It's adjusting the other barrel" said Frank. Doh!

EDIT: I can't seem to keep left and right straight.

 

Last edited: May 23, 2010

C

ceasar

Well-known member

• May 23, 2010

• #6

tpcollins said:

The diopter on my Bushnell 7x26 Custom Compact is on the left - makes perfect sense to me.

Click to expand...

When did that happen?

Mine is on the right.

Bob

 

tpcollins

Well-known member

• May 23, 2010

• #7

7x26 Custom Compact

I got my Bushnell Compacts in the early 80's - serial number R01724. I also have my brother's Bausch & Lomb "Audubon" version that he got in the mid 80's as well - serial # 202308. Both have the diopter on the left. Both are the mini reverse porro prism style - not the newer "Star Trek" looking type.