Rangefinder10

Hi Rob How do you do that calculation? John

Will do, as soon as the clouds pass, whenever that will be!

Problem solved😀 And it was in my possession all of the time, but I hadn't thought to use it. The little 1.6 W.O. barlow, sitting in my binoviewer box, screwed into the end of the bino!! I'd tried various extension tubes but all obviously too long. I had in mind that I needed much more focus draw than actually required. Thanks to everyone for your help. The forum is a great source of knowledge and assistance. cheers John

Thanks Rob I think that Ihave a 2” Barlow tucked away somewhere. I’ll see if that works cheers John

I’ll put in a question to Williams in the USA to try and obtain more info John

Stu nothing in focus at all in any position, completely blurred John

Here are some pics I tried different focus lengths but to no avail. I will try the GPC route to see if That is my solution many thanks for all the helpful suggestions John

Thanks Stu I’ll try and post some later cheers John

I just simply assumed that it would be ok with my Megrez 72 but didn’t seem to work

I have the W.O. Version , cost me £50, and at that price I thought “ nothing to lose” John

Thanks Vlaiv I'm soaking these details up as fast as I can. John

I'm not totally hung up on the matter of binoviewers. It's just that a bought a pair out of interest from Ian King when he was shutting up shop last year, because I wanted to experience the difference in use, but not yet been able to make them function, and was curious about the critical factors to take regard of when choosing my next scope.

Very helpful, thanks, I will have a more detailed review John

I have a Skytee 2 and an AZ5. My concern about weight is more to do with lifting capability. Whilst manageable now, I'm trying to look ahead a year or two where I may not be so capable of lifting heavier weights.

Stu thanks for your comments. That is indeed one of the scopes that I've been looking at, but I felt was perhaps a little too heavy. Ideally I would like to try and keep the OTA weight down to no more than 5 kilos if possible.