collimators

[ekim]

ok can anyone help please .so I recently bought a next generation 1.25" with 2" adaptor collimator

my problem is I cant get it to fit my eye piece, please am I thick or do they come in a smaller size

my scope is a edu science 4"mirror 76mm dia  700mm f  the eye piece looks to be about an 1"

please help, as you can tell im new to all this

[Cornelius Varley]

Your telescope might use the older and  smaller 24.5mm (0.965") size eyepiece size rather than the more common 31.7mm (1.25") eyepiece.

[ekim]

cheers so when you older does that mean I cant get a laser collimator for it any more

[ekim]

Your telescope might use the older and  smaller 24.5mm (0.965") size eyepiece size rather than the more common 31.7mm (1.25") eyepiece.

so does that mean I can no longer get a laser collimator for it then

[Charic]

ekim, correct.........but you could buy an adaptor 24.5mm to 31.7mm (1.25")  then use your laser. Cornelius Varley was correct about the focuser size.

Also check on-line about collimating your laser, to ensure its accurate. That will save you a whole headache in future?

[Cornelius Varley]

If the eyepiece fitting size is 24.5mm you won't be able to use any, more modern, accessories without the use of an 0.965" /1.25" adapter. These are available but first accurately measure the diameter of the eyepiece to check the size. 

[Cornelius Varley]

If you can confirm that your telescope uses 0.965" eyepieces this is the adapter you need http://www.ebay.co.uk/itm/0-96-to-1-25-telescope-eyepiece-adapter-/161181556014?pt=UK_Telescope_Adapters&hash=item25872b5d2e

[ekim]

If you can confirm that your telescope uses 0.965" eyepieces this is the adapter you need http://www.ebay.co.uk/itm/0-96-to-1-25-telescope-eyepiece-adapter-/161181556014?pt=UK_Telescope_Adapters&hash=item25872b5d2e

cheers for all your help