For the popular Canon EOS cameras, there is a wide range of very good lenses available. What is more obvious than using these lenses also for astrophotography with high resolution CCD cameras. This adapter establishes the connection from your CCD camera to the lens and also connects to a photo tripod or accessory clamp.

The capabilities and advantages of the combination of EOS lens and CCD camera

• With cooled CCD cameras, significantly deeper images of the sky are possible than with uncooled DSLR cameras.
• Resolution and especially depth of the images from CCD cameras are higher, Objects do not wear out so fast, the images generally appear more plastic.
• Totally different sections of the sky can be imaged than with photographing through the telescope. Nebulae, clusters and even galaxies can be presented totally new and with high quality. Like the image of the North America Nebula at left.
• With an autoguider, your EOS lens can even be used as compact guiding scope - perfect for astro air trips where every gramm counts.

The Geoptik Canon EOS Adapter is suitable for these lenses:

All Canon EOS lenses for full format or APS-C format and also lenses from third-party suppliers like Sigma, as far as they are designed for Canon EOS cameras.

Attaching the Lens to the adapter:

Before the lens is attached to the adapter, please screw thje locking ring inwards as far as it will go. Then screw in the lens with the bayonet into the adapter as far as it will go. Then screw out the locking ring until the lens is locked.

The EOS lens adapter is suitable for these CCD and CMOS cameras:

Due to the short optical length of only 19 mm, you can adapt almost all CCD cameras, video cameras with C-mount, cameras from The Imaging Source and cameras from many other suppliers.

As most cameras have only little distance between thread and chip, you might possibly need T2 extension tubes for acieving the correct distance between lens and camera. Beside the extension tubes, we also offer conversion adapters to other connections like C-mount or 1.25".

Video cameras and planetary cameras can also be used.

Suitable adapters (T2 to C-mount or T2 to 1.25" barrel) are linked as "recommended accessories".

Use of filters

You can use 1.25" and 2" filters. The smaller one is mounted with the internal adapter, a 2" filter is directly screwed into the 2" filter tread. If the internal 1.25" filter adapter is removed, the free aperture is 35 mm.

Mounting on a tripod or piggyback adapter

Many CCD cameras don´t have a connector for photo tripods. This EOS adapter solves the problem. At its base, the adapter has one 1/4" photo thread and three M5 threads. With these threads, the adapter can be mounted trouble-free to photo tripods, ball heads, dovetail bars and accessory clamps.

Scope of Delivery:

• Geoptik Canon EOS lens adapter
• Insert for 1,25" filters