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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 15346
Loc: Cumberland, R I , USA42N71.4W
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APM America announces 150mm binocular telescope available in July
Not a lot of specifics, but from the ad copy it looks like 3 sizes of eyepieces (proprietary?) 25x, 30x, 35x.
These are big guns, serving a small market. Not sure we'll see to many of these bought, reviewed, taken apart, reviewed again. Perhaps this is one of those items it would just be a pleasure to look thru, rather than look at.
edz
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Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
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edwincjones
Postmaster
Reged: 04/10/04
Posts: 5944
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I also saw the announcement, and am trying to compare it to my fuji 25x150 MTsetup:
my fujis with G11 tripod, UA Siuius mount, case cost $8000 in 2002;
this 150mm binocular with tripod and mount is $4000
my fujis weigh 41#, this one 47#
I have fixed ep, straight through; these have interchangeable eps at 45 degrees
how much quality of optics and construction is needed to justify 2X price of the fujis now?
edj
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n w arkansas
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APM M.Ludes
Vendor (APM Telescopes)
Reged: 05/01/03
Posts: 469
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I have the first sample by hand :-)
the big advantage : it takes 2" eyepieces and you can screw in filters to the normal 2" eyepieces. We will switch from original eyepieces to better 70° widefield eyepieces
here some specs from the real sample:
case dimension : 820 mm long x 530 mm wide x 260 mm height , weight of empty alu case 12.5 kg
Binocular :
- dimensions 750 mm long include eyepieces, 350 mm wide , largest diameter at front is about 175 mm
- weight without eyepieces : 22.0 kg
- field stop diameter of glas in focuser 34 mm
- focallength : 824 mm
- clear aperture : 150 mm
- fully multicoated achromat
- eye distance from 62 mm minimum tp 76 mm maximum
- original eyepiece 25 x = 32 mm 65° with no filter thread. I would like to switch to the SWA 32 mm 70°, so we getting maximum FOV 2.8 degree and we can use UHC or O-III Filters, the backfocuse distance is big enough for such
Forkmount and adjustable metal tripod : weight 12.4 kg
detailed infos and pictures going to the webside tomorrow
thanks
Markus Ludes
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clear skies
Markus Ludes
anfrage@apm-telescopes.com
www.apm-telescopes.de
20 year anniversary of APM 1990-2010
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RichD
scholastic sledgehammer
Reged: 11/08/07
Posts: 759
Loc: Derbyshire, UK
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nice, seems good value too
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Clear skies
Rich
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Tony Flanders
Post Laureate
Reged: 05/18/06
Posts: 3934
Loc: Cambridge, MA, USA
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Quote:
- eye distance from 62 mm minimum tp 76 mm maximum
For what it's worth, that rules it out for me (interocular distance 57 mm) and a significant fraction of other people. But I commend you on publishing the statistic, something that most manufacturers fail to do.
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Tony Flanders
First and foremost observing love: naked eye.
Second, binoculars.
Last but not least, telescopes.
And I sometimes dabble with cameras.
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 15346
Loc: Cumberland, R I , USA42N71.4W
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Quote:
eye distance from 62 mm minimum
that is rather wide for a minimum IPD. That would just work for me, I'm 62mm. But my brother is also a 57, so it would be out of the question for sharing the view with him.
edz
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Teach a kid something today. The feeling you'll get is one of life's greatest rewards.
member#21
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Wes James
Post Laureate
Reged: 04/12/06
Posts: 3958
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Durn... my IPD is 66.6mm... was hoping I could use that as an excuse for ruling one out for me! Oh, well... the $$$$$'s will do that... nice looking, though!
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Wes
Atlantic Beach, FL
Some bino’s from Miyauchi 5x32 Binon's up through Garrett 20x110 Signature's,
Some telescopes from a Stellarvue 80mm NHNG up through a couple of 8” reflectors…
And a wonderful 4.25" Delmarva Shiefspiegler!
Some good friends, made here on C/N.
Oh- several cats and a wonderful wife!
Anyone want a cat???? :-O
"When your work speaks for itself- Don't Interrupt" -Gamble Rogers
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RichD
scholastic sledgehammer
Reged: 11/08/07
Posts: 759
Loc: Derbyshire, UK
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62mm is rather wide. I'm 61 so i'm out!
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Clear skies
Rich
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Andresin150
sage
Reged: 08/14/07
Posts: 368
Loc: Bogotá - La Calera / Colombia
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I´m receiving a pair too here in Colombia since I´m planning on distributing those also. The Chinese said that they'll send only 25x eyepieces since 2" eps out there are better than theirs, so 30x and 35x are out. They also said about the IPD, fortunately I have 64mm, so I would be enough, but very close, not everyone will be using those. For the set I ordered, they are going to include a pair of 2" to 1.25" adapters to widen the posibilities of EPs used, since 2" eps may work but wont leave enough space for the nose... I just ordered a pair of 21mm Denkmeier eps.... hope those work
As EDJ said, I'll be testing those compared whit my Fuji's to state differences, we'll see...
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25x150 MT
30-50x120's
Ultra 15x70's
GOTO NEX Planetarium
1 Macaw, 1 Toucan, 1 parrot and many other little ones...
And the nicest greenhouse!
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Rich V.
Carpal Tunnel
Reged: 01/02/05
Posts: 1566
Loc: Carson Valley, Nevada, USA
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Quote:
As EDJ said, I'll be testing those compared whit my Fuji's to state differences, we'll see...
Andres, your side-by-side will be the one we'll be waiting for; few others will be able to make any kind of comparison.
After all the posts of QC problems with the same manufacturer's 100mm 45° binoculars it will be interesting how the 150mms fare vs. Fujinon quality.
I'm also curious how the standard 25x 33.6mm 65° AFOV eyepiece works out as it should have about a 38mm field stop looking down onto a 34mm focuser window. Will there be noticeable vignette?
It's interesting to note that the 2" eyepiece feature is really only aimed at achieving 25x-32x with the limited number of WF 2" eps available in the appropriate focal lengths (26mm-30mm). Wider FOV eyepieces will have a field stop much larger than the focuser aperture. A pair of 2" 26 Naglers could give a pretty spectacular view at 32x with the max. 2.5° FOV! The 1-1/4" 24 Panoptic will provide 34x and 2° FOV.
Looking forward to your comparison!
Rich V
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Binoculars:
33/50/75/150x100 Saturn III, 16x70 FMT-SX, 10x50 PCF-V, 10x43 DCF-SP, 10x35 E2, 7x35 E, 8x30 E2, 7x26 Custom, 8x23AS Diplomat, 8x23 Travelite
Scopes:
C9.25, 6" f8 reflector, SV80S
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Mike Hosea
Post Laureate
Reged: 09/24/03
Posts: 4350
Loc: "Metrowest" Boston
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Quote:
A pair of 2" 26 Naglers could give a pretty spectacular view at 32x with the max. 2.5° FOV!
Unfortunately, the diameter of the 26mm Type 5 is (listed at) 2.8", corresponding to an IPD of just over 71mm. The 20mm Type 5 and 22mm Type 4 should work for more people.
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Mike
- 7" f/6.7 home-built Newt and equatorial platform
- 36mm QX, 20mm 5K SWA, 13mm Ethos, 9mm BGO, 6mm ZAO-II, 5.1mm XO, 2x TV Barlow
- Filters: Baader M&S, 6-piece color set, ND.6, ND.9
- 120mm f/8.3 home-built grab-n-go Newt with 25mm Tak Ortho + GSO 3x Barlow
- Binoculars: 15x50 image stabilized, 12x50 roofs
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Rich V.
Carpal Tunnel
Reged: 01/02/05
Posts: 1566
Loc: Carson Valley, Nevada, USA
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You're quite right, Mike! Another consideration to take in when choosing 2" eyepieces for a binocular! 
Rich V
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Binoculars:
33/50/75/150x100 Saturn III, 16x70 FMT-SX, 10x50 PCF-V, 10x43 DCF-SP, 10x35 E2, 7x35 E, 8x30 E2, 7x26 Custom, 8x23AS Diplomat, 8x23 Travelite
Scopes:
C9.25, 6" f8 reflector, SV80S
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Mr. Bill
Post Laureate
Reged: 02/09/05
Posts: 3408
Loc: Just passing through.....
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I found the nosebridge clearance on my Fuji 150s to JUST fit even though my IPD is 65mm, so how "fat" the ocular barrel's maximum OD is also critical in considering whether or not these will work.
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10x50 Fujinon binos + 16x70 Fujinon binos + UA UniMount
Oberwerk BT100 45 degree +24mm Pans + Hercules fork mount
120mm f/5 Orion achromat + Moonlite focuser
130mm TMB 130SS f/7 APO refractor
140mm Vixen f/5.7 Petzvel refractor
150mm f/8 homemade achromat "EE Barnard MW sweeper"
8 inch newt with f/5 Swayze mirror
10 inch f/4.7 Orion newt + Paracorr = f/5.4
15 inch f/5 Discovery "Galactic Cannon"
35mm Pan...26,22,17mm Naglers...13,6mm Ethos
Member IDA
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Mike Hosea
Post Laureate
Reged: 09/24/03
Posts: 4350
Loc: "Metrowest" Boston
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I don't have any experience with this to speak of, but it seems obvious that, even when the barrel diameters are equal, you would rather have something with a volcano-style top (e.g. a 20mm Type 5 Nagler) rather than something more nearly cylindrical.
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Mike
- 7" f/6.7 home-built Newt and equatorial platform
- 36mm QX, 20mm 5K SWA, 13mm Ethos, 9mm BGO, 6mm ZAO-II, 5.1mm XO, 2x TV Barlow
- Filters: Baader M&S, 6-piece color set, ND.6, ND.9
- 120mm f/8.3 home-built grab-n-go Newt with 25mm Tak Ortho + GSO 3x Barlow
- Binoculars: 15x50 image stabilized, 12x50 roofs
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Andresin150
sage
Reged: 08/14/07
Posts: 368
Loc: Bogotá - La Calera / Colombia
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thats why I've been searching for a pair of 2" oculars that have a barrel size equal or less than 2.1" and whit long ER so you don't have to sink your nose against them.
In my search, I found the 17mm Vixen Lanthanum, not too wide and 20mm ER, but where not totally convinced. Fortunately, before I did that purchase, the company sending me the binoculars said that they were sending a pair of 2" to 1.25" adapters, so I went for the 21mm Denkmeiers, hope I made a good choice..  I also liked that those were send paired for binoviewing and whit nice winged style eyecups...
--------------------
25x150 MT
30-50x120's
Ultra 15x70's
GOTO NEX Planetarium
1 Macaw, 1 Toucan, 1 parrot and many other little ones...
And the nicest greenhouse!
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boydd
sage
Reged: 12/07/07
Posts: 238
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Quote:
thats why I've been searching for a pair of 2" oculars that have a barrel size equal or less than 2.1" and whit long ER so you don't have to sink your nose against them.
In my search, I found the 17mm Vixen Lanthanum, not too wide and 20mm ER, but where not totally convinced. Fortunately, before I did that purchase, the company sending me the binoculars said that they were sending a pair of 2" to 1.25" adapters, so I went for the 21mm Denkmeiers, hope I made a good choice.. I also liked that those were send paired for binoviewing and whit nice winged style eyecups...
An exciting time ahead for you. It is always fun to start someting new.
Binoculars are in general wide field instruments as stated by many. At first blush, it seems counterproductive to be channeled into using 1.25" ep's in an instrument designed for 2" ep's. A 2" ep shows a bigger TFOV given the same focal length in a 1.25" ep which is what wide field viewing is about.
Dave Boyd
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Andresin150
sage
Reged: 08/14/07
Posts: 368
Loc: Bogotá - La Calera / Colombia
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Yes, it is! I´m certainly in it for the fun!:)
We'll see how those Denks do; their specs state 65º AFOV. At first I wanted to go for the "best" so I went for a pair of ethos... fortunately I read many things before buying (not what I usually do!) and became aware that I cant take more than 70º AFOV at a time, then choices became less and ended whit the Denks and the supplied 1.25" adapters.(It saved me some dollars too  )
As Mr Bill said, the Fuji's are exactly in the limit for a person whit my IPD (64mm) since designers of those two giants forgot that people have noses! I thought I had a very small IPD, but differently from that, It appears that many people have less than that, even 57mm. I´ve also been interested in higher magnifications, around 40x, to get better contrast (blacker sky) and some extra detail... and also to see something similar as the 40x Fuji´s.... I don't think I'm going to miss the ED glass (I´ve never have ED glass), since except for the moon, I´m not a bright object observer, and especially now whit the 45º EPs...
--------------------
25x150 MT
30-50x120's
Ultra 15x70's
GOTO NEX Planetarium
1 Macaw, 1 Toucan, 1 parrot and many other little ones...
And the nicest greenhouse!
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beachchairbill
professor emeritus
Reged: 11/06/08
Posts: 627
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Wow, 46lbs without the mount and tripod. Any one have a crane and very very deep pockets.
Beachchair
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edwincjones
Postmaster
Reged: 04/10/04
Posts: 5944
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Quote:
Wow, 46lbs without the mount and tripod. Any one have a crane and very very deep pockets.
Beachchair
they are not for the faint of heart
edj
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Mr. Bill
Post Laureate
Reged: 02/09/05
Posts: 3408
Loc: Just passing through.....
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Quote:
Quote:
Wow, 46lbs without the mount and tripod. Any one have a crane and very very deep pockets.
Beachchair
they are not for the faint of heart
edj
Or a bad back.....OTOH, they do have a handle so picking them up and mounting should be much easier than the Fuji 150s. Still, not exactly "grab and go."
--------------------
10x50 Fujinon binos + 16x70 Fujinon binos + UA UniMount
Oberwerk BT100 45 degree +24mm Pans + Hercules fork mount
120mm f/5 Orion achromat + Moonlite focuser
130mm TMB 130SS f/7 APO refractor
140mm Vixen f/5.7 Petzvel refractor
150mm f/8 homemade achromat "EE Barnard MW sweeper"
8 inch newt with f/5 Swayze mirror
10 inch f/4.7 Orion newt + Paracorr = f/5.4
15 inch f/5 Discovery "Galactic Cannon"
35mm Pan...26,22,17mm Naglers...13,6mm Ethos
Member IDA
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