Spotting scope Sky-Watcher Acuter 80A (45°) ZOOM 20-60X - Test

Do you have a good telescope that is magnifying, bright and cheap?

Laser printing, marking - Sale of machines and machining

Do you engrave third parties? How much?

Lunar direct across clouds

I recently bought a telescope. It happens that I don`t see clear as yesterday, it didn`t fall. What can it be?

Apo Tessar 9/600mm : reparation and polish.

I have a objective with scratched lenses. Is it possible repair it?

COMA professional ND variable filters

I have a Canon EF lens and i want mount it on a Sony alpha 7 camera. I want make video, so is it possible close diaphragm or reduce brightness without use electric adapters?

Spool film for Zorki FED Leica L39 telemeter camera

I lost the spool of my film camera Zorki, where can I find it?

SUPER FOCUSER NO ROTATING FOR LUNT 50 TELESCOPE

I have a problem with focuser of Lunt 50 telescope. It doesn`t work. Can you help me?

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

MACRO semifixed adapter for Canon Eos EF camera to SIGMA SA lens

Can i use Sigma SA lens on Canon Eos EF camera?