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Baader T2 eyepiece holders height measurements

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18 replies to this topic

#1 denis0007dl

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Posted 13 February 2020 - 10:44 AM

Many asked me, and there are no specifications that Baader provide about that, what is very important in many aspects, so here are precise measurements of heights of most popular Baader T2 eyepiece holders for binoviewers, and for other purposes:

 

1. Baader ClickLock - 32mm

2. Baader Helicall - 29mm

3. Baader Ultrashort - 20mm

 

All best

CS

Denis, binoviewers expert

 

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#2 sonny.barile

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Posted 13 February 2020 - 06:31 PM

Dennis.......just for my curiosity.....How would the ultra short be used? The barrel of an Eyepiece would still dictate the height of the eyepiece? What would it save the user? 


Edited by sonny.barile, 13 February 2020 - 06:32 PM.


#3 denis0007dl

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Posted 13 February 2020 - 09:14 PM

Dennis.......just for my curiosity.....How would the ultra short be used? The barrel of an Eyepiece would still dictate the height of the eyepiece? What would it save the user? 

Hello,

 

all depends on what equipment you are using them.

Lets say, some binoviewers have some space by themselves deep inside each eyepeice sides, so eyepeices can go inside these holes some 1cm +/-.

 

Same for T2 diagonals etc.

 

So it make sense to using them!

 

Hope it helps.

 

Kind regards

CS

Denis, binoviewers expert


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#4 junomike

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Posted 14 February 2020 - 06:43 AM

Which eyepiece holder works best can also be dependent on the eyepieces being used.

Eyepieces with short Barrels could easily seat in the Ultrashort Holders (provided the BV has enough clearance on the inside) as

opposed to an eyepiece with a longer Barrel


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#5 denis0007dl

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Posted 14 February 2020 - 07:08 AM

Correct!

#6 denis0007dl

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Posted 14 February 2020 - 09:05 AM

Here is example of Zeiss APO binoviewer with installed Baader Ultrashort eyepiece holders!

 

Deepth of equipment (eyepieces etc) which can go inside each eyepiece holder is 28.7mm!

 

So you see in that case its VERY usefull to have these holders to save more light path over other eyepiece holders!

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#7 denis0007dl

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Posted 14 February 2020 - 09:06 AM

...and here is comparation of all mentioned Baader T2 eyepiece holders installed on same Zeiss APO binoviewers in same line...

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#8 Jeff B

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Posted 14 February 2020 - 10:25 AM

Good stuff Denis. waytogo.gif



#9 denis0007dl

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Posted 14 February 2020 - 11:03 AM

Thank you Jeff ☺️

Yeah, many, many, many asked me many times about these eyepiece holders.

I asked Mods if would be possible to PIN that thread, because its really extremly usefull for many future readers!

Its important stuff which Baader dont provide + pictures attached as example + explanation how they work.

#10 vkhastro1

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Posted 14 February 2020 - 02:08 PM

...and here is comparation of all mentioned Baader T2 eyepiece holders installed on same Zeiss APO binoviewers in same line...

Denis, 

 

Very informative photo.

 

The first 2 T-2 versions - clicklock & helical version allow individual fine focus for the 1.25” eyepieces while the ultra-short version doesn’t have a fine focus adjustment.

The T-2 helical and ultra-short versions have a compression ring and 3 set screw - allows very slight adjustment of the 1.25” eyepieces for easier collimating.

 

My preference is the T-2 helical version because it has both previously mentioned advantages.



#11 denis0007dl

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Posted 14 February 2020 - 02:26 PM

Thank you!

Yes, I like also most Helicalls, second Ultrashort, and last Clicklock system.

Ultrashort is very compact and strong and stabile, nothing moves there, while in others does!

#12 AtmosFearIC

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Posted 15 February 2020 - 12:47 AM

My first binoviewer was a Baader Maxbright which had the three screws which, as has been mentioned, allows for some eye piece collimation. It very quickly had me wanting to go with the Clicklock system so that I didn't waste time constantly having to collimate.

Since moving to the Baader MkV which has the T2 Clicklocks, I've never had an issue with eye piece collimation and never felt the need to NEED it either.

 

For me the question is whether the shorter back focus is worth the irritation of having to potentially collimate the eye pieces every eye piece change.



#13 denis0007dl

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Posted 15 February 2020 - 02:42 AM

For Helicall system, just remember which just 1 **** use on each side to lock eyepieces, and no problem at all.

Some users remove other screws which are not in use, so just 1 is left on each side, so you have no confusion.

BTW, on Mark V, Clicklocks are, but NOT T2 system, they are built in and are not removable.

#14 sonny.barile

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Posted 16 February 2020 - 11:19 PM

Thanks.....now I get it. I was mistakingly thinking these were for eyepiece to diagonal connections. lol.gif



#15 krakatoa1883

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Posted 17 February 2020 - 05:42 AM

Some binoviewers obtained from microscope binocular heads have a long optical path, longer than most astro binoviewers, in this case short profile holders may help in reaching focus particularly with refractors.



#16 bouvier_1

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Posted 17 February 2020 - 12:51 PM

Can clicklocks be installed on a Celestron bino?



#17 denis0007dl

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Posted 17 February 2020 - 01:12 PM

Can clicklocks be installed on a Celestron bino?

Yes they can, with some tricks how to remove original eyepeice holders + making custom made T2 plates.



#18 junomike

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Posted 17 February 2020 - 01:52 PM

Yes they can, with some tricks how to remove original eyepeice holders + making custom made T2 plates.

Is it cost effective (really worth it)?

Or cheaper to just get maxbright (or BV with them already installed).



#19 denis0007dl

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Posted 17 February 2020 - 03:55 PM

Defintetly high price to make T2 system + price of ClickLocks as well.


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