The cookie settings on this website are adjusted to allow all cookies so that you have the very best experience. If you continue without changing your cookie settings, we'll assume that you are happy to receive all cookies on our website. However, if you would like to, you can change your settings at any time using the Change cookie settings link in the Special menu.        
Home > Extensions Spacers & Adapters > M48 T-Thread Spacers Extensions & Adapters > 7.5mm M48 Spacer Extension Ring 2" OD Barrel (2" Filter Thread)

7.5mm M48 Spacer Extension Ring 2" OD Barrel (2" Filter Thread)

7.5mm M48 Spacer Extension Ring 2" OD Barrel (2" Filter Thread)
Price: £8.00
Incl. VAT 20% ( £1.33 )
Product code: M48-75-EXT
Add to wish list

This 7.5mm spacer tube has a male and female M48x0.75 filter thread on each end.

It's designed to help you achieve the required backfocus for imaging with CCD and DSLR cameras. It has a 2" OD barrel, which can be inserted into any 2" telescope focuser - just like an eyepiece or any other push-fit accessory.

That means you can screw it into your Skywatcher M48 DSLR camera adapter to increase the distance between your camera and field flattener.

The spacer can be stacked with any other M48 fixed spacer or variable spacer in our range to achieve the exact distance you require between camera and flattener.

The M48 spacer also accepts standard 2" eyepiece filters which use the same M48x0.75 thread.

The M48 spacer can be screwed into a 2" eyepiece to extend the eyepiece barrel length.

Why M48? M48 has an additional 6mm internal diameter compared to T-Thread M42 which reduced vignetting with full frame DSLRs and CCD cameras with a large chip size.

Altair Astro Product Discussion ForumQuestions about Altair products?
Where to buy Altair Astro products:
UK orders:

Europe orders:

North America & Canada orders: 

Products can be ordered online from Altair with tracked insured shipping to anywhere in the world. For large items shipping price may need to be re-quoted.

Russia orders: Please contact.

Availability: If product shows as out of stock, please click on the "Notify me when in stock" button to receive instant notification of availability. Altair Astro and iOptron reserve the right to change the product price and specification without notice. 

Related products

Altair Astro Photo Visual Coma Corrector and Field Flattener for Newtonian reflectors
M48 x 0.75 DSLR Adapter for Canon or Nikon
M48 17-29mm Variable Spacer Set (3 part)
Altair PlanoStar 3" 1.0x Flattener for 102 110 115 130 refractors

Customer feedback

Customer Reviews

There have been no reviews for this product.

Send to friend

: *
: *
: *
Type the characters you see in the picture:

Gift certificates