Esprit 120 ed help

[dark knight]

Hi everyone, bit of a long shot here, i have the above telescope and intend to use it with my modded canon dslr for astrophotography, it came with the dedicated flattener however the dslr m62(flattener side) to m48 (canon t adapter side) dslr ext tube is missing. Is there anywhere i can get one? Does anyone have that part who could measure it up should i require to have one custom made, any help/advice gratefully received, sorry for all the rain and clouds!!

[dark knight]

Quick update, I have found a local company who have the right equipment to make me an m62 to m48 spacer/dslr ext tube, all I now need are the correct measurements if anyone can help.

[Laurin Dave]

Hi, in the manual ( https://inter-static.skywatcher.com/upfiles/en_download_caty01416868621.pdf ) it states that the field flattener back focus is 75mm so it should be 75mm - 44mm (Canon backfocus) - the thickness of your M48 to EOS adapter

Dave

[dark knight]

Dave, thank you so much for that info, that really makes things simpler for me to work out the width of the dslr ext tube, again many thanks

[GraemeC]

This question has been asked before, have a look at this link... 

 

[Whirlwind]

On 19/06/2020 at 17:10, Laurin Dave said:

Hi, in the manual ( https://inter-static.skywatcher.com/upfiles/en_download_caty01416868621.pdf ) it states that the field flattener back focus is 75mm so it should be 75mm - 44mm (Canon backfocus) - the thickness of your M48 to EOS adapter

Dave

Also make sure you take into account any filter you might attach to the DSLR (e.g. light pollution filter/multipass narrowband filter) as the thickness of the filter will alter back focus slightly.

[PeterCPC]

Is it this

Peter

[dark knight]

Any filters sit inside the dslr adapter so wont interfere with the overall spacing.

[dark knight]

Quick update. Just received quote back from local company,,  £400!!!!!!!!, says it because setting up machine for a single piece,  to say nearly fell off my chair is an understatement. Going to try precise parts in usa

[Waldemar]

37 minutes ago, dark knight said:

Quick update. Just received quote back from local company,,  £400!!!!!!!!, says it because setting up machine for a single piece,  to say nearly fell off my chair is an understatement. Going to try precise parts in usa

put a thick cushion next to your chair....
is the above mentioned option at FLO not the right one?

[Stuart1971]

48 minutes ago, dark knight said:

Quick update. Just received quote back from local company,,  £400!!!!!!!!, says it because setting up machine for a single piece,  to say nearly fell off my chair is an understatement. Going to try precise parts in usa

As has been said before by @PeterCPC here is the item you need....

https://www.firstlightoptics.com/adapters/astro-essentials-m48-camera-adapter.html

[dark knight]

No thats just the t ring adapter, i need the m62 to m48 dslr ext tube

[Waldemar]

M 62 to M48 adapter ... male or female thread?

 

[dark knight]

M62 female side, m48 male side, optical length 20mm

[Laurin Dave]

Probably worth contacting FLO as per this thread ..  although dating from 2012 the most recent post suggests that they are still offering the service

 

[Waldemar]

Teleskop Expres in Germany can make you one, but it will take a couple of weeks, but not expensive...
M62 is Takahashi thread, they should have a m62 to m48 adapterring, but I cannot find it at the moment...

[johninderby]

Telescope Express now charges €85 for their custom adapters and delivery is about a month.

https://www.teleskop-express.de/shop/product_info.php/info/p9286_TS-Optics-custom-made-Adapter.html

Edited July 19, 2020 by johninderby

[whipdry]

Hi Dark? 

I have the part you need, think it's original part/parts consisting of a 20mm tube with M62 female thread & a 5mm tube M62 male to M48 male with an internal M48 filter thread for... pictures show its marked as the previous owner was a little over zealous releasing a binding thread. 

PM me with an offer if you're interested? 

Peter