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Equipment Discussions >> Binoculars

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planetmalc
sage


Reged: 10/21/09

Re: What binocular would you like to own? new [Re: Tamiji Homma]
      #5551863 - 12/03/12 11:18 AM

For terrestrial use, a pre-war Carl Zeiss Jena Deltarem 8 x 40 with modern coatings.

For handheld astro use, the 65 degree AFOV Nikon 10 x 70.

For tripod use, I'm with Tammy: it'd have to be the Miyauchi BR-141 with 90 degree inclined eyepieces.


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Stellarfire
Pooh-Bah


Reged: 07/10/11

Loc: Switzerland
Re: What binocular would you like to own? new [Re: Andresin150]
      #5551907 - 12/03/12 11:55 AM

handheld astro:
Zeiss Victory 10x56

handheld terrestrial:
Leica Ultravid 10x50

handheld astro/terrestrial image stabilized:
Zeiss 20x60 S, or Canon 10x42 L IS / Canon 10x50 IS

tripod astro:
Kowa Highlander Fluorite 32x82 (have it already and would buy it again)

tripod terrestrial:
Docter Aspectem 80/500 ED

tripod astro observatory:
Fujinon 25x150 ED or 40x150 ED



Stephan


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Mapleton
professor emeritus


Reged: 12/06/09

Loc: United States
Re: What binocular would you like to own? new [Re: Jon Isaacs]
      #5552149 - 12/03/12 02:26 PM

Quote:

Being 100% unrealistic:

A binocular telescope consisting of two NP-101s...

Jon




There is a fellow in Germany with two TV 140s. You have to think big.


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Gordon Rayner
Carpal Tunnel
*****

Reged: 03/24/07

Re: What binocular would you like to own? new [Re: planetmalc]
      #5552160 - 12/03/12 02:32 PM

I have a Deltar, the IF version of the widefield prewar 8 x 40 with tapered prism ( uncoated). You would prefer the 8 x 50B Super Nobilem from DDR Carl Zeiss Jena, which I missed buying when they were available, and only saw about six years ago in a massive collector's (RIP) hoard.

The Deltar field, while very wide, and good in the center, deteriorates with increasing angle before modern eyepiece designs. The Deltar/Deltarem have an orthoscopic 4-element eyepiece. The inner surface of the eyelens is an asphere. The design was by Albert Koenig. A very similar eyepiece is in the WW II Zeiss 25 x 100 with 60 deg inclination.

There is a Deltar aberration plot , and for the cited 8 x 50B Nobilem, (in Zemax(?)What is the program?) At the Albrecht Koehler website www.AlbrechtKoehler.de

The 65 deg Nikon 10 x 70, from the 1970s, did not have modern multicoatings , and was less sharp than the standard field 10 x 70's which came later, and the 7 x 50 Fuji Meibo which I had at the same time on the boat, about ten each, new . Those 7 x 50 ( no rubber "armor" nor any brittle glue)cost about $70,maybe $100, IIRC. The 65 deg was heavy ( that is OK by me), and had cold metal on the nose, as I recall. My specimen, long gone, cost me under $200 in Yokohama in 1975. I used it to watch the albatrosses en route to San Pedro on American President lines, as an unpaid oceanographic temperature monitoring technician. A lady had one for sale at RTMC a few years ago. I was tempted, but passed on it, because of duplication of function at that magnification and aperture range, and no neck relief for astro with a straight binoc, without a p-mount, and they would be heavy for prolonged use handheld while one is resting on a recliner. That 10 x 70 has noticeably less color error than the WW II Nikko wide field (uncoated) 10 x 70, but more than the cited Fuji Meibo 7 x 50.

It would be welcome if Nikon were to re-offer that model, but improved as suggested.

Edited by Gordon Rayner (12/03/12 06:15 PM)


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faackanders2
Carpal Tunnel


Reged: 03/28/11

Re: What binocular would you like to own? new [Re: Andresin150]
      #5552691 - 12/03/12 07:47 PM

If I could afford it 45 or 90 deg 150mm Garrett binos w/ removable 2"/1.25" eyepieces.

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planetmalc
sage


Reged: 10/21/09

Re: What binocular would you like to own? new [Re: Gordon Rayner]
      #5555386 - 12/05/12 10:00 AM

Quote:

I have a Deltar, the IF version of the widefield prewar 8 x 40 with tapered prism ( uncoated). You would prefer the 8 x 50B Super Nobilem from DDR Carl Zeiss Jena, which I missed buying when they were available, and only saw about six years ago in a massive collector's (RIP) hoard.

The Deltar field, while very wide, and good in the center, deteriorates with increasing angle before modern eyepiece designs. The Deltar/Deltarem have an orthoscopic 4-element eyepiece. The inner surface of the eyelens is an asphere. The design was by Albert Koenig. A very similar eyepiece is in the WW II Zeiss 25 x 100 with 60 deg inclination.

There is a Deltar aberration plot , and for the cited 8 x 50B Nobilem, (in Zemax(?)What is the program?) At the Albrecht Koehler website www.AlbrechtKoehler.de

The 65 deg Nikon 10 x 70, from the 1970s, did not have modern multicoatings , and was less sharp than the standard field 10 x 70's which came later, and the 7 x 50 Fuji Meibo which I had at the same time on the boat, about ten each, new . Those 7 x 50 ( no rubber "armor" nor any brittle glue)cost about $70,maybe $100, IIRC. The 65 deg was heavy ( that is OK by me), and had cold metal on the nose, as I recall. My specimen, long gone, cost me under $200 in Yokohama in 1975. I used it to watch the albatrosses en route to San Pedro on American President lines, as an unpaid oceanographic temperature monitoring technician. A lady had one for sale at RTMC a few years ago. I was tempted, but passed on it, because of duplication of function at that magnification and aperture range, and no neck relief for astro with a straight binoc, without a p-mount, and they would be heavy for prolonged use handheld while one is resting on a recliner. That 10 x 70 has noticeably less color error than the WW II Nikko wide field (uncoated) 10 x 70, but more than the cited Fuji Meibo 7 x 50.

It would be welcome if Nikon were to re-offer that model, but improved as suggested.



Thanks for that, Gordon. I already have a Deltar which used to be my main terrestrial binocular, but at my age (about to turn 70) I can no longer accomodate across a large range of object distance, hence my desire for the centre-focusing Deltarem variant. In the meantime, I'm using the oft-maligned (but not by me) Bushnell Xtrawide 7 x 32 instead.

I also have the Carl Zeiss Jena 8 x 50 Nobilem Super that you mention, but find the ergonomics to be awful (unlike the Deltar which seems like it was tailor-made for me). I have smallish hands with short fingers, and the Nobilem seems to be completely the wrong shape for me to hold properly. Great to look through, though.

Yes, a Nikon widefield 10 x 70 with modern coatings would be great, and I can imaginee quite a few CN-ers splashing out on them.


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gcfboulder
member
*****

Reged: 09/27/07

Loc: CO
Re: What binocular would you like to own? new [Re: Andresin150]
      #5563398 - 12/10/12 12:20 AM

I've always wanted to own a pair of 30x80 binos, but didn't want to spend a fortune since I have so much money invested in my 2 scopes and binoviewer, and I also did not want a pair that weighs close to 10 pounds becasue I didn't think my Paragon mount could handle it.
I finally bought a pair of Barska X-trail 30x80s. I was expecting them to arrive poorly collimated, and/or with the lenses inadequately coated and thus having annoying reflections, etc.
Turns out, this is a very nice pair of bincoluars. They weight less than 5 pounds. Collimation is good and optics are adequate. A mag of 30 looking at the moon, the sun (I have solar filters), Jupiter, Albireo etc. makes a huge difference over my previously largest binos which are 20x80s. The 30x80s are "a trip' to use.
Of course, at that much power, you need a good tripod and a little bit of experience in holding your head steady while viewing. Putting vibration isolaters on the tripod and viewing while seated in an adjustable chair helps me achieve a steady image and comfortable viewing. I also discovered that the viewing with the eyecups folded down is necessary to avoid feeling like you are looking through 2 tunnels. This is true with or without glasses on.
If you love big binos like I do but can't spend a lot, and if you can view in the manner described above , consider trying a pair of these binos, since the cost is only about $130 from Binocluars.com and others.
That recommendation is based on my pair arriving with good collimation. If you buy a pair and they arrive poorly collimated, send them back! Nothing worse than a poorly collimated pair of binos.


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MigL
member
*****

Reged: 06/19/07

Loc: Spain
Re: What binocular would you like to own? new [Re: gcfboulder]
      #5585338 - 12/23/12 10:28 AM

Hello!

Kowa Highlander Fluorite 32x82
Docter Aspectem 40x80ED,

One of these should be great !!!

Regards,

Miguel


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Space Dragon
member


Reged: 02/19/12

Loc: Scotland UK
Re: What binocular would you like to own? new [Re: MigL]
      #5590083 - 12/26/12 06:15 PM

120mm, 90º, BA8, changeable EPs, on a GOTO Fork Mount. Portable/transportable.
[with no loss of aperture]


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camvan
Carpal Tunnel
*****

Reged: 05/02/05

Loc: British Columbia
Re: What binocular would you like to own? new [Re: Space Dragon]
      #5590650 - 12/27/12 01:41 AM

Kowa Highlanders. I had only to look through them once, at an out-cropping of landscaping to find myself 'gob-smacked' by the image. gob-smacked!!!

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Sgt
Pooh-Bah
*****

Reged: 12/17/05

Loc: Under the southern horn of the...
Re: What binocular would you like to own? new [Re: camvan]
      #5591325 - 12/27/12 03:09 PM

Kowa Highlanders.

Fuji 40x150 right angle


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Scott BeithAdministrator
SRF
*****

Reged: 11/26/03

Loc: Frederick, MD
Re: What binocular would you like to own? new [Re: Sgt]
      #5591348 - 12/27/12 03:20 PM

Garrett® 100mm F/5.3 45º Mk II Binocular Telescope

https://www.garrettoptical.com/Garrett-100mm-Binocular-Telescope-p/gt100-45.htm

The reason I would like to own them is not based on personal experience, but a desire to use them for long range terrestrial observing.


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Simon S
Carpal Tunnel
*****

Reged: 01/07/07

Loc: Crawley West Sussex UK
Re: What binocular would you like to own? new [Re: Sgt]
      #5591349 - 12/27/12 03:20 PM

The pair locked in the captains quarters on the Titanic.

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timfiskwa
member


Reged: 12/22/07

Loc: Richardson, TX
Re: What binocular would you like to own? new [Re: Simon S]
      #5591805 - 12/27/12 08:49 PM

Fujinon 10 X 50 for handhelds.

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F.Meiresonne
Post Laureate
*****

Reged: 12/22/03

Loc: Eeklo,Belgium
Re: What binocular would you like to own? new [Re: timfiskwa]
      #5592192 - 12/28/12 06:51 AM

Maybe a 110 mm BA8 series.

And then again..the bulk and weight keep putting me off. But the aperture is so very temtping...


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Gordon Rayner
Carpal Tunnel
*****

Reged: 03/24/07

Re: What binocular would you like to own? new [Re: Sgt]
      #5594727 - 12/29/12 05:06 PM

You would like a Fuji 40 x 150 right angle. Such a specimen has not existed, correct?

I had use of a Fuji 25 x 150 right angle , as a demonstrator, for about the or three months, during the pre-Halley's comet sales push . It weighed about the same, some 65 pounds, as the straight view, trunnioned fork mounted Fuji I (my terminology)straight view widely used for fishing , mounted with thick bungee cords to isolate from engine vibration and some of the pitch and roll of the boats.

The right angle 25 x 150 had noticeable drop in field illumination, in comparison with the straight view. The pentaprism which fed the Porro II (same Porro II as in the straight view) seemed to be the maximum size which would fit without major changes in the body casting and departures from the f/5 objectives. Also, conveniently, that pentaprism was already used in a Japanese armored vehicle, I was told by a Fuji mechanical designer.

The Chinese semi-copies, and much smaller right angle penta feeding Porro II have appeared in the past few years have had problems , probably related to the topic just mentioned.
Smaller Chinese right angle view have shown non-circular exit pupils from asymmetric beam chopoffs in the prisms.

The glass path in a penta plus Porro II is very long. The semi-penta (plus Porro II), used in some 45 deg. inclined view 150mm. Chinese versions, has a shorter glass path.

Are there any Fuji 45 deg inclined 150mm ED outside Japan or the one widely known specimen in Europe? Can we get together a 5-piece minimum order?

Addendum 12/31/2012 :

A PM from the owner and user of a Fuji 45 deg. inclined view 25 x 150 ED indicates that it uses a Schmidt roof prism feeding a rhomboid, ff. WW II Japanese 45 deg inclined 20 x 120 by NIKKO, TOKO, etc., which show roof edge spikes when viewing Sirius, rather than a half-penta feeding a Porro II.

I have or had an 80mm WW II Japanese shipboard binoc, with spring suspension mount, which is half-Penta plus Porro II.

I have never seen a Fuji 45 deg inclined 25 x 150. Schmidt roof prism plus rhomboid was my guess, until Glenn LeDrew converted me, from consideration of external body configuration in the prisms housings , to the view that it uses a half-penta ( one surface metallized, rather that the two in a full 90 deg. pentaprism ) feeding a Porro II.

But, presently, that idea seems erroneous, from the cited testimony.


Edited by Gordon Rayner (12/31/12 03:32 PM)


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EverlastingSky
professor emeritus
*****

Reged: 09/12/06

Loc: Vancouver Canada
Re: What binocular would you like to own? new [Re: Gordon Rayner]
      #5595046 - 12/29/12 07:58 PM

If fictional instruments are accepted then I would settle for a modest non existent Fujinon 20x100. Quite acceptable without 45° by the way.

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