Red dot finder to Hotshoe

[Chewie65]

Hi all 

My first post. 
I’ve been dabbling with mainly Milkyway images and occasionally bigger deep sky targets using an Olympus OM1 and 300mm plus 1.4 or 2x adapter- so full frame max is 1200mm at f8. I’ve a Star adventure and managed some result’s 

my problem is locating deeper sky targets and seems best (mist cost effective for my level) way to go is a Red dot, but most have a rifle type fitting.

What suggestions do you have for either one item, or finder with adapter. I’m in the uk so not sure how much difference that makes to what can be sourced. 
(I only live a few miles from FLO and picked some stuff up from the, great team there) 

[PeterCPC]

What about this https://www.widescreen-centre.co.uk/blitz-hotshoe-dslr-camera-adapter-for-red-dot-finder.html

[Chewie65]

38 minutes ago, PeterCPC said:

What about this https://www.widescreen-centre.co.uk/blitz-hotshoe-dslr-camera-adapter-for-red-dot-finder.html

Thanks - looks perfect 

[Chefgage]

On 13/10/2022 at 10:16, Chewie65 said:

Thanks - looks perfect 

When I use my canon DSLR that's the type of adapter I use