Canon 400D with SW EXPLORER-200P

[The_PSY3NTIST]

Hi Guys. Wondered if anyone could help me with this... Ive managed to pick up a Canon 400D and the 1.25 t adapter for it but cant get focus. Its asif the cam needs to be just a bit closer. Im totaly new to Imaging so apologies in advance if its something obvious

Thanks

[Starblazer]

Move mirror further up tube or change focuser for a low profile crayford.

[Black Knight]

I had the same problem. Easy solution is to either use a barlow (downside is it reduces the light reaching the cameras sensor), or use the direct camera connection.

If your 200P has the Crayford focuser with 1.25" adapter, you can unscrew the 1.25" adapter and attach the T-ring to the focuser thread. This is the direct camera connection. I didn't even know it was there until recently .

Hope this helps.

[The_PSY3NTIST]

Thankyou Ill have a go at that and see what happens was hoping it would be something simple like that, that I was overlooking

[Beyond_Vision]

It's best not to use a 1.25" fitting with a DSLR as this will cause vignetting. This will cause the edges of the picture to darken as if you were looking down a tube.

As the others have said the camera needs to be closer to bring it to focus. A lot of newtonians need the main mirror moving up the tube by using the collimation screws to push the mirror up or alternatively a lower profile focuser.

[Glider]

As mentioned above, if you unscrew the barrel of the 1.25" eyepiece holder you are left with a male T2 thread. You can screw your Canon camera straight to this using a T ring.

[lukebl]

As Glider says, you should be able to do this without any drastic adjustments. I had one of the old Blue 200P Skywatchers, and my 400D focussed fine if you unscrew the 1.25" eyepiece holder as described and screw the T2 thread into the Canon adaptor.

[The_PSY3NTIST]

Thankyou guys. going to give it a go tonight failing that Ill adjust the mirror. Now all I have to do its learn all the complicated techniques you guys use :s I like a challenge though.. Need to get myself to one of these imaging days

[planetdnb]

I have same setup. as others said just unscrew the 1.25 eyepiece holder and thread that into your canon adaptor. you should be laughing!

[jasonp]

Excellent I did not know this either. Infact just acquired a 400D today to replace my 300D.

Thanks for the post.