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Show us your Jaegers Build

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#1 mdowns

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Posted 05 August 2014 - 07:30 PM

Many of us who have been around for 30,40 or 50 plus years in the hobby. As such most of us old timers have at one time or another built a refractor using Jaegers components. For me I think four is the number though there might be another. Anyway I could'nt pass up a scope stuff sale a couple of years back and bought a 5" f5 jaegers objective with the intent of one last build. Sheldon F. actually had an empty 5" apogee ota that he sold cheap so aside from the rings and dovetail I had everything I needed,tube,cell,baffles and focuser.I got some rings and a dovetail off of amart and was ready to go except for one thing,time.I could never find any.After sitting for over a year in a closet I finally gave the components to my winter observing pal and fellow cnighter Claude Roy. Claude and his wife travel to our part of the world every winter from Canada and does most of his years stargazing from November to May here in Florida.Sure enough,in less than a month,Claude dropped off his Jaegers build while on his way home. He asked me to test it for him while he was away.I finally put it out on a mount tonight and it started me thinking about how many of these and other sizes and fls are out there.Heres a pic of Claude's build and another of one of mine from back in the late 70s. Anybody else?

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Edited by mdowns, 05 August 2014 - 07:31 PM.

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#2 Chuck Hards

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Posted 05 August 2014 - 08:31 PM

Last year's build, a Jaegers 110mm (4.3") f/4.5   Antares (GSO) 2" focuser with special, short drawtube to prevent vignetting.  On a Jaegers 1" shaft mount on 60" tall steel pedestal.  Stock Jaegers drive, Losmandy dovetail adapter.  Molded fiberglass dust cover.  All-aluminum construction, felt lined, slip-fit dewcap.

 

JaegersMount004_zps4ad9f02c.jpg

 

This year I'm working on the Jaegers 6" f/5.  Just machined the backplate to attach a Baader 3" Steeltrack focuser.  Long work hours has slowed this project but I hope to kick it into high gear come September.


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#3 neo

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Posted 06 August 2014 - 03:13 AM

Here's my recently completed 83mm F/15 Jaegers built around the lens from the SShed, one of the first batches they had in original cell and fully coated. I had to tune it against a flat to get the best of it. I really like it, no hint of color and I get pin point stars especially with modern eyepieces. It's quite a delight for solar observing. I have yet to build a more solid mount around the ota and the prooven pillow block eq mount is what I got in mind :) .

 

Picture%2520078.jpg

 

Picture%2520080.jpg

 

I look forward to get my hands around a bigger Jaegers lens any time I have the chance. It seems SShed is history (Jaegers wise) now and I had bad luck on timing myself with their last sales :crazy: .



#4 Tom McDonald

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Posted 06 August 2014 - 06:56 AM

Nice looking scopes! :bow:

 

I've got a Jaegers 83mm f12 from one of SShed's past sales. All I've got so far is the lens, cell and tube. Not having any luck finding a decent focuser. All I see is cheap plastic ones. I can't see putting a Feathertouch or JMI on it! Some day I'll get it built.......



#5 mdowns

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Posted 06 August 2014 - 06:42 PM

Neo,

  Give me awhile but I know somewhere I have a Jaegers 110mm f4.5 objective.You pay for shipping and I'll give it to you.......



#6 dawsonian2000

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Posted 06 August 2014 - 09:38 PM

Here is a photo of my homebuilt 6" f/10 Jaegers refractor that I built in honor of my wife Gelinda.

 

Mel

 

 

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#7 Jeff Morgan

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Posted 06 August 2014 - 10:45 PM

Well, mine was not quite involved as these projects - I bought a finished 6" f/5 OTA and built the mount for it. It was a scaled down Richard Berry design incorporating Chuck's "weightless woodshop refractor" mod to avoid using the counterweight box. It functioned fabulously.

 

For low power Milky Way sweeping the contrast beat the pants off any Newtonian I have seen. It would be interesting to see the newer 8" Istar Comet Hunter.

4542510-Jaegers on Berry Mount.jpg

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#8 magic612

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Posted 06 August 2014 - 11:01 PM

EDIT: I really didn't double post... but somehow it did. Sorry. 


Edited by magic612, 07 August 2014 - 06:40 PM.


#9 magic612

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Posted 06 August 2014 - 11:01 PM

Well, someday I really WILL get around to finishing my 127mm f4.5 refractor (that I'm 99% sure is a Jaegers lens) that will go in this tube.... 

 

 

WoodTubestainedsmaller.jpg


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#10 brave_ulysses

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Posted 07 August 2014 - 06:34 AM

very nice execution!

 

 

 

 

Well, mine was not quite involved as these projects - I bought a finished 6" f/5 OTA and built the mount for it. It was a scaled down Richard Berry design incorporating Chuck's "weightless woodshop refractor" mod to avoid using the counterweight box. It functioned fabulously.

 

For low power Milky Way sweeping the contrast beat the pants off any Newtonian I have seen. It would be interesting to see the newer 8" Istar Comet Hunter.



#11 stevep

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Posted 07 August 2014 - 03:35 PM

Here is an 80 f15 I made a few years ago, lens and cell was new in original box been sitting in it for years in Australia, focuser again was new a chap bought it in the 70' for a project but never used it, the finder is in keeping branded ''Fullerscopes'' an old UK telescope company, some of you Unitron guys may find it looks familiar, branded NS Japan, very nice performing scope,

 

Steve

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#12 Sean Cunneen

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Posted 09 August 2014 - 10:50 AM

Well, heck, since this is a Jaeger's thread, I guess thats an excuse for me to post another pic of my refractor, 6" f15 Jaeger's on a homebuilt mount...

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#13 Tom Clark

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Posted 11 August 2014 - 02:34 PM

Back in the days before good digital setting circles, one needed a good finder to really enjoy observing. My old buddy Vic Menard told me that your finder should be about 1/4 the size of your objective, not the 10x50 piece of **** I was using. So we built two Jeagers, both 5" f/5s, or as we called them, 20x120s. Sure made finding things a lot easier when youi had a five degree field of view. Here is the same finder on a few of my early Dobs. I built the 2" diagonal holders and 9" dew caps: Necessary for our underwater observing in FL.

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#14 Tom Clark

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Posted 11 August 2014 - 02:38 PM

Last two photos:

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#15 mdowns

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Posted 11 August 2014 - 04:54 PM

Love seeing these as finders! I always dreamed of having a dob large enough to merit a 128mm finder but not yet,maybe never,who knows.I suspect you no longer have to deal with the 'soup' of our summer air in NM.



#16 Tom Clark

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Posted 11 August 2014 - 08:32 PM

Forgot about this photo. Here are the two 5" f/5s. Vic's 16" is on the left, and my 20" is on the right. My Jeagers was mounted on my Coulter 17" when we watched Halley's in '86, then right after that it was mounted on this scope. I used it on my first half dozen scopes over the years.

 

The person I sold the Yard Scope to eventually asked what I did with the Jeagers. I pointed to it up on a shelf in my workshop. He made me an offer I couldn't refuse. Always regretted selling it. When I built the 42" in 2004, I purchased another doublet for a finder. It is a Chinese 5" f/9. Couldn't find a reasonably priced f/5 available at that time. Often wish I had the 5˚ field of the Jeagers back. The longer f/9 only has a 2.5˚ field.

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Edited by Tom Clark, 12 August 2014 - 07:33 AM.


#17 bremms

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Posted 11 August 2014 - 09:00 PM

Here is a shot with two of my Jaegers scopes. 6" F10 on the big mount and a 5" F5 on the chest in the back

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#18 mdowns

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Posted 11 August 2014 - 09:15 PM

BTW, I love how you decorate a room!



#19 Pinbout

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Posted 11 August 2014 - 09:54 PM

 

Forgot about this photo. Here are the two 5" f/5s. Forgot about this photo. Vic's 16" is on the left, and my 20" is on the right.

 

 

Gorgeous scopes with gorgeous scenery.



#20 starcanoe

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Posted 12 August 2014 - 08:23 AM

Well, not finished yet, but here is the 6" F15 I am working on. This pic is of the tube that breaks down into shorter sections so the long beast can be transported.
 
All the details of this build can be found at the ATM forum under the thread "Something large and clunky arises(sic) from the swamp"

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#21 bremms

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Posted 12 August 2014 - 09:10 AM

I was thinking about a coupler for my 6" F12 D&G that is in process. ( Barry says the lens will be here soon ;-}). Have the 6" F10 Jaegers and it is superb. Bought the lens from SS to make an inerim scope. The lens was just as good as my 5" F12 D&G but larger. Sold the 5" F12.

Like your the "Large and Clunky Swamp thread.



#22 figurate

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Posted 15 August 2014 - 03:59 PM

This one I just started last week. I had three pieces of PVC sitting on the floor and I began to see how I could build an entire OTA for my 4" f/10 lens set out of just those three parts in order to test the optics. I had found two couplings that fit together, and matched the pipe OD, so I removed a small amount of wall thickness with my mini-lathe to create a cell, and used a thin section of the same PVC coupling to fashion a retaining ring, which fits tightly inside it (dictating the pull tab for easy removal). It will be a while before I finish, but it is completely functional as it is. I'm going to be testing a couple of things, taking advantage of that shiny white tube to study how stray light and baffles behave. The lens is impressive with a .012" spacing, but my D&G has slightly better color correction. 

  

 

Fred 

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#23 mdowns

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Posted 15 August 2014 - 04:16 PM

Fred,

 How will you paint the inner diameter? Or are you going to flock it instead?



#24 figurate

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Posted 15 August 2014 - 06:42 PM

I'm going to experiment with baffling first, using that shiny interior surface to get feedback on baffle positioning. I am guessing that one or two baffles might suffice with additional 'glare stops' closer to the front end (rings about 1/2 inch wide). An easy way to do it is using thin black foam sheeting (Hobby Lobby or similar) cut in such a way that every two circular foam strips sprung into the tube hold a baffle in place between them.

 

Fred



#25 Chuck Hards

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Posted 16 August 2014 - 12:26 AM

Fred, show-off that mount as well!  








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