Lunar binoviewing zoom setup

[HollyHound]

Just now, Saganite said:

As you know my bino's are the Denk II with power switch and they work perfectly on my f15 & f7.7 refractors and f5.3 Dob.  Bino's attached to my 12" dob give simply jaw dropping views so I would recommend trying yours asap. I had the WO bino several years ago and it worked perfectly on my 12" dob at that time but I had to put 60mm of tube extension between the nosepiece and the 1.6x lens to reach focus..... Beware,

low flying over the surface of the Moon is very addictive ..

Good to hear they work very well on dobs, I certainly will be trying with mine as soon as I can. I do have the extension which came with the dob, so can use that if needed... thanks for the heads up 👍

[Ricochet]

6 hours ago, HollyHound said:

Good to hear they work very well on dobs, I certainly will be trying with mine as soon as I can. I do have the extension which came with the dob, so can use that if needed... thanks for the heads up 👍

It is in travel that you will need rather than an extension. I am hoping that the newton gpc should allow focusing on hexafoc newtonians. Hoping, rather than knowing, due to the excellent covid supply chain issues. 

[HollyHound]

2 minutes ago, Ricochet said:

It is in travel that you will need rather than an extension. I am hoping that the newton gpc should allow focusing on hexafoc newtonians. Hoping, rather than knowing, due to the excellent covid supply chain issues. 

Just double checked and in fact I am already using the extension for normal use, so without that extension and (possibly) using the GPC I should be ok 🤞If not, it's not the end of the world for now, as I am more than happy with the Mak for lunar, but nice extra if I can use it 👍

Thanks

Gary

[Saganite]

Hi Gary,

Just to clarify what I said, the 60mm extension goes onto the nosepiece of the WO bino and is therefore extra in travel. On both the Skywatcher and the Lightbridge on which I used the WO bino , you could wind the focuser fully in, ie max in focus and it did not reach the focal plane unless 60 mm extension was added to the nosepiece.  The Denks I have now have this extension tube supplied with it.