Reducing Tilt with 130PDS, 1600MM + EFW & Baader MPCC

[matt_baker]

Just got my 1600MM Pro and I'm wondering how to reduce the tilt with 130PDS and MPCC attached?

I have got 3 thumbscrews attached but I have a feeling they won't do the job so is there anything more I can do to reduce the tilt caused by the focuser without upgrading it?

[alacant]

Hi

How about this?

But with close on a kilo of stuff that far from the tube on a budget focuser, well...

Just my €0,02.

Cheers

[matt_baker]

5 minutes ago, alacant said:

Hi

How about this?

But with close on a kilo of stuff that far from the tube on a budget focuser, well...

Just my €0,02.

Cheers

Do click locks not make the focus too far out?

[alacant]

14 minutes ago, matt_baker said:

make the focus too far out

Focus is at the same point with or without. You have only about 6mm of back focus: room for the camera, filter wheel and click lock before the cc.

But try without first. The thumb screws are probably as good as you'll get.

 

Edited June 7, 2020 by alacant

[matt_baker]

11 minutes ago, alacant said:

Focus is at the same point with or without. You have only about 6mm of back focus.

I keep finding replies like this saying otherwise about the clicklock

[alacant]

14 minutes ago, matt_baker said:

saying otherwise

A DSLR requires 45mm. You have 6.

I thought you were using an así 1600.

Are you now using a DSLR? The clik lock will not work with a DSLR.

Cheers.

[matt_baker]

1 hour ago, alacant said:

A DSLR requires 45mm. You have 6.

I thought you were using an así 1600.

Are you now using a DSLR? The clik lock will not work with a DSLR.

Cheers.

I'm using the 1600 yes and it does have 6.5mm backfocus but I have the MPCC too so after the FW and spacers are attached, that becomes 55mm

[alacant]

So, fw + camera = 26.5mm

The 54mm click lock is 30mm optical length giving 56.5mm. The Baader cc needs 57.5mm.

Sorry, Calculation only. My only hands on was which the GSO cc with has 75mm back focus.

Cheers

 

 

 

Edited June 7, 2020 by alacant

[spillage]

what about one of these?

[matt_baker]

Actually just bought one of those, should be arriving soon. 

 

[Ishan Mair]

On 11/06/2020 at 05:13, matt_baker said:

Actually just bought one of those, should be arriving soon. 

 

Waiting to see the results and photos of image train.