Focus ring for GoPro with 5.4mm lens + W25A filter

Is it possible realize focus ring for my GoPro modified with 5.4mm lens?

Eye lighted for cleaning ccd cmos digital cameras sensor

I purchased the products for cleaning the sensor of my camera but I can not see the dirt. Have something to illuminate the area to be cleaned?

Zeiss binocular tower modify. Reduced optical path and collimation

I have a Zeiss binocular tower for microscope and i want utilize it on my TEC 140 refractor telescope. Is it possibile?

Giant binoculars collimation diameter 100 mm 45 ° with interchangeable eyepieces

Could you collimate a 100mm binoculars?

Obi Wan Kenobi

MAGIC FOCUSER photo video adapter for Celestron HUMMING BIRD

Thanks for realize an adapter to use my camera on HUMMING BIRD little riflescope.

Video with pinhole lens

Is it possible take video with pinhole lens? Do you have a movie?

Adapter to connect double clamp on MEADE LXD 750 mount

I have a doulbe clamp for Vixen or Losmandy slides. Is possible mount it on my MEADE LXD 750 mount ?

Movie with wide angle pinhole 22mm focal length

I see you made a hole pinhole lenses with focal lengths from 44mm. You can make it with a focal 22 mm?

CPC 11 Celestron modify for calibration clutch