Glasses or not ......

To: "" <>
Subject: Glasses or not ......
From: Lyn Saint <>
Date: Sat, 16 Jul 2016 02:21:15 +0000
Hi Everyone,

I have a bit of a quandary at the moment. I have acquired a Sigma 100-400
mm lens for my Canon 7D and often find it difficult to determine if the
bird is in focus or not. I can't see clearly enough through the lens.

I have glasses but have also purchased and am using a dioptric adjustment.
This is good but annoying as I need to have my glasses on to find the bird
and then have to whip them off to focus though the lens.

For those of you who have this issue with glasses, do you have any advise
on this issue?


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