Making our own image intensified eyepieces
Andrew & Damian
This entry is a copy of an entry made in November 2009.
The commercial versions of these eyepieces cost £1500 ($2000) upwards…….here we describe how we made one for £50 ($80) plus some spare SLR lens/extension tubes lying around the house.
The main differences that we are aware of between the commercial versions and ours are:-
(i) Theirs has a higher resolution – not that we noticed at the eyepiece!
(ii) Ours has more distortion of the field – oh well you can’t have everything!
(iii) Theirs are a lot lighter…no getting away from that – our version requires a sturdy telescope/mount and 2 inch focuser.
What we are less sure of is:-
(i) Any difference in brightness? Possibly but the image intensifier we used is a 3 stage generation 1 intensifier that gives pretty bright images
(ii) Fun level – ours delivers on the fun side
(iii) Both image intensifiers can be used with an SLR lens without the scope – probably the best bit
(iv) Ours gives you the enjoyment and sense of achievement of having made it yourself
(v) Price difference – this is one aspect of ATM where there is still a really big difference in price between the ATM version and the commercial version!
Please note we accept no liability for damage or injury incurred from following our instructions (its just what we did) and we make no guarantee that this will work for you. Please let us know if you find a better way of constructing your eyepiece so we can update this website. You will need to source components – a difference image intensifier should work but you will need to modify the instructions. Plus – please note neither of us have had a chance to compare our version with the commercial versions.
We hope you have great fun making your image intensified eyepiece!
The two files below are both PDF files:
Andy & Damian