Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)
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Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)

Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)

£55.00
  (3 Reviews)
✓ 2 year warranty

:  

42x in stock shipped 1-2 working days

About this product

Model:  ae_m48_ext_set_short

Astro Essentials M48 Extension Tube Set (4mm, 5mm, 6mm, 7mm, 8mm & 9mm)

A handy, good value, nicely made set of shorter M48 extension tubes: 4mm, 5mm, 6mm, 7mm, 8mm & 9mm.

These are suitable for use with a wide variety of M48-threaded equipment and can be used singly or in combination to achieve your desired back focus.

39mm total back focus when all extensions used.

Black anodised Aluminium.

M48x0.75 male thread at one end and M48x0.75 female thread at the other.

Customer reviews

Average Rating (3 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
Not quite Lord of the Rings
16 February 2024  | 

Arrived promptly, thank you FLO for the usual good service. The rings do what you'd expect and fit fine. As already commented by others:
Do, Lubricate the threads before use.
Do, make sure that a pair of rubber "Marigolds" other brands are available! are to hand as gripping the small rings if they do lock up is difficult.
Don't over tighten unless you have no intention of undoing them.
If they do pickup try heating the external ring (internal thread) in a shallow pool of hot water, not recommended if a camera or lens is attached.


Rating (max 5):  
Spacer rings
26 November 2022  | 

Excellent service but for the first time after purchasing many items over the past 8 yrs from FLO this is the first time a product has been less than 100% satisfactory. The rings come stacked together and several were thread bound out of the box but finally separated with aid of rubber gloves. When snugged up found they became loose again but nippimg up a little bit tighter become thread bound. Iwould risk using them in between other spacers but nervous using next to oag, filter wheel or camera in case they remain seized as too narrow to use strap wrench and quite flimsy so would probably distort using pipe grips/wrench. Obviously the other review for these rings is a positive 5 star so maybe I've just been unlucky with this set.


Response:

I'm sorry to hear you are not happy with these, please contact us if you would like to return them for a refund.

I cannot account for the experience you have had with these as it doesn't match our own experience with these adapters - we have found them to be well machined with nicely formed threads but, with all aluminium adapters we would advise using something in the threads to stop them binding in the cold like a small amount of silicone grease or better yet, a delrin spacer.


Rating (max 5):  
Spacer to get that back focus accurate
01 February 2022  | 

These spacers are ideal to get that back focus accurate - a good range of sizes
product is well made and threads have been formed well within tolerances (nice secure fit without binding)
the 'blacking' is a little bit shiny to start with this should dull down with being outside (no reflection perceived)
Ideal when changing the cameras to suit target
excellent service by FLO as always

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