keith5700

Wow doesn’t time fly! Here’s a quick update on the binoscope. I did a full overhaul last year, converted to 3 legs to make it easier to level. I’ve built an anodising setup, so did some colouring of various parts. It has a Nexus 2 push to system, which is great. I still hardly use it though, I think my biggest pleasure is in making things. I think it may be time to sell, but where, and how much, I’m not sure. I can’t face putting it on Facebook Marketplace, with all the stupid offers I’ll get, so any suggestions welcome. I don’t really know how to price it either, I reckon it owes me between £6-7k, so maybe somewhere round there? cheers.

Hi all. First post so go easy on me. I'm building a 16" binoscope. I've been at it since Xmas and thought I'd put some pics up of progress so far. I'm sure most of it's construction is self explanitory from the pics, but a couple of things are maybe worth a note. The main focussing is done by raising and lowering the main mirrors, which are fixed to a frame which slides on hardened shafts and linear bearings. The focussing knob is at the top and this drives a screwed shaft through the centre of the main tube. The eyepiece width is achieved by sliding the eyepiece holders apart and together, again on shafts and bearings. The diaoptre adjustment is done by moving the eyepieces left or right as a fixed pair. So, the first adjustment is to set the eyepiece width. Then, whilst looking at a star, the pair is moved left or right to get both stars equally out of focus, which is easy as the images are concentric. Then the main mirrors are adjusted to bring it all into focus. Sounds complicated but it only takes a few seconds, after a bit of training. There is a control box for the eyepiece adjustment so they are moved by turning some knobs, and 3 settings, for 3 viewers, can be stored and retrieved from the controller. Anyway, I'll see if I can get some pics to load. Keith.