BirdForum is the net's largest birding community dedicated to wild birds and birding, and is absolutely FREE!

Register for an account to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply to thread

Message: <blockquote data-quote="jring" data-source="post: 3442443" data-attributes="member: 133897">Hi,actually the 601 is newer than the 1,2,3,4 series... you have to look for the protecting glass yourself. On my old style TSN-3 body you can see and touch the prism where the EP goes, the later 1,2,3,4 series models have a glass plate in front of the prism which hermetically seals the body.You can measure the distance of the bayonet flange to the prism/glass plate with a slide gauge or so and post here, up in the thread I have given the measurements for the EPs I own and others might be able to help too.Joachim</blockquote>