Finderscope green laser pointer for telescope

Have you a quick finder to apply on my telescope?

Telescope fitting test for full-format camera Sony 7

I have a Sony 7s full frames camera. If I use the classic connection with its t2, vignetting me. Do you have a connection that is right for me?

Giant binoculars collimation diameter 100 mm 45 ° with interchangeable eyepieces

Could you collimate a 100mm binoculars?

The Moon with a telescope at 90 magnifications

As you see the moon with a telescope 70mm diameter and 900 focal ? I`m interested in your items: 3708 and 4408