GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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hi to all.
Some days ago i've received an exemplar of General hi-t 20x110.
Unfortunately the weather has been often cloudy, therefore I can only send my first impressions.
Well... this binoculars is very heavy: 6.5kg, i'am using this binoculars with a Chinese clone of bogen 501 and a fork mount sold by generalhit ...but i'am studing to improve my parallelogram mount because, with the first setup, i've many vibration during the zenith observation, also if the tripod is in the lower position.
Coatings are very good, better than the first 7x50) that i posses. Exit pupils is perfectly round, in the next few days I will use a green laser in order to verify the brightness of the exit pupil...edz docet :-)
Using in daytime i've not verify particular false color, the chromatic correction is better regarding the economic models 25x100 that I possess.
In the astronomy use, (only for an hour because of the meterological conditions) I have measured the following field: 75% 10% 15%. Observing stars of lower-middle luminosity its are pinpoints on approximately the 70-75% of the visual field,(like to good achromatic refractor) but with the stars of I and II Magn. are pinpoints on approximately 55% of the field. In synthesis the vision is better regarding mine 25x100FB.
For "my usual sub-urban sky, under which I observe, the exit pupil is too big ,5,5mm, (i use with profit 4mm of E.P) however the good contrast can "cut "the galaxies from the sky very very well. I would want to try also the version with 28 enlargementes.
I hope to send you a complete report between a pair of weeks.
Best Regards from Italy
Piergiovanni
www.binomania.it
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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another image
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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Clear Skies!
Pier
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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pcad
Carpal Tunnel
Reged: 01/17/05
Posts: 1501
Loc: Connecticut
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Pier,
Thanks for your first impressions. Those pictures comparing the 50's to the 110's are great! Looking forward to your more complete reviews.
Peter
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Peter
Telescopes 25 - 318 mm
Binoculars 15 - 88 mm
Microscope 50x - 1000x
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Erik D
Carpal Tunnel
Reged: 04/28/03
Posts: 2554
Loc: Central New Jersey, USA
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Pier,
Thank you so much for the photos and first impression. That 110 looks MASSIVE!
Both of you look good in BLACK!
I also prefer ~4mm exit pupil in 80mm or larger binos from my suburban backyard. I am interested in up- sizing to the 28X110. Would be very interested in hearing more about CA control in day time viewing. I spend a lot time using my 20X80 bino for long range terrestrial observation.
Erik D
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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Hi.
Don't worry, i also use my binoculars in day time viewing, so i'll send you my impression also in this field,unfortunately in the limits of my "english".
Best!
pier
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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KennyJ
Reged: 04/27/03
Posts: 10146
Loc: Lancashire UK
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Well , Hello Pier my friend !
Thank you for posting those great photos , and for sharing your first impressions with us here .
I find it almost incredible that from the FRONT elevation , it would be impossible to tell which was which if it wasn't for the data on the identical prism housings !
By the way , I like your new avator , and simply MUST ask the question :
" Is that YOUR wedding photo ? "
Regards and clear skies ,
Kenny
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If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 12581
Loc: Cumberland, R I , USA42N71.4W
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Quote:
By the way , I like your new avator , and simply MUST ask the question :
" Is that YOUR wedding photo ? "
And also, inquiring minds want to know, is it recent?
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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Mark9473
Carpal Tunnel
Reged: 07/21/05
Posts: 2699
Loc: 51°N 4°E
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after 4 days of owning the TS version of that 7x50, I already find it very typical that on the first picture one of the objective covers is not in place.
I very much enjoyed the initial impressions on the 20x110, and look forward to reading much more!
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Mark
Leica 8x20; Vixen 8x42; Swift 8.5x44, 10x50 and 20x80; TS 7x50; Orion 15x63
WO Megrez II 80 FD + Baader 90° T2 Amici
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Phillip Creed
Idiot Seeking Village
Reged: 07/25/06
Posts: 1033
Loc: NE Ohio
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Pier,
WOW. That side-by-comparison really hits home. Those 20x110s are MONSTERS. With the 5.5-mm exit pupil, I think you now have the ULTIMATE instrument for IC 1396, NGC 7000, and NGC 1499 from dark skies.
Clear Skies,
Phil
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"Why suffer from insanity when you can revel in it?"
Wilderness Center Astronomy Club member since 1995
ICQ Comet Observer Code: CRE01
*****
16" f/4.5 Truss Dobsonian (FOR SALE!!)
Orion 120mm ST Refractor
23mm Axiom LX
13mm Nagler Type 6
9mm Nagler Type 6
1.75X Siebert Barlow
*****
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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Quote:
Quote:
By the way , I like your new avator , and simply MUST ask the question :
" Is that YOUR wedding photo ? "
Edz, Kenny...Yes it is! i am wedding the last 5 August with Jenny.
Best
Pier
And also, inquiring minds want to know, is it recent?
edz
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
|
|
WOW. That side-by-comparison really hits home. Those 20x110s are MONSTERS. With the 5.5-mm exit pupil, I think you now have the ULTIMATE instrument for IC 1396, NGC 7000, and NGC 1499 from dark skies.
Hi Phil, Unfortunately i've this binoculars at home only for a test. I think that i'll buy the 28x110, that it could be better from my sub-urban skies.
Have a nice week
Pier
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[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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camvan
Carpal Tunnel
Reged: 05/02/05
Posts: 2086
Loc: British Columbia
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I know that ever since I heard about 20/28x110's, I've wanted them. in effect, how much light is that letting thru compared to a single refractor? I've got a bad case of aperature(sp?) fever ever since looking thru an Obsession 18". that's well out of my range and finding I love bino's lots, I think these are probably closeer to 'perfection' (at least, in theory, application waits...we want review!) that I'd actually be able to afford some day! 
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Cameron
"Aperture can only be replaced by even more aperture. Dark transparent skies cannot be replaced by anything else." - Stathis Kafalis
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Mark9473
Carpal Tunnel
Reged: 07/21/05
Posts: 2699
Loc: 51°N 4°E
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Phil, wouldn't you think seeing those large objects requires a FOV even slightly larger?
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Mark
Leica 8x20; Vixen 8x42; Swift 8.5x44, 10x50 and 20x80; TS 7x50; Orion 15x63
WO Megrez II 80 FD + Baader 90° T2 Amici
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Mark9473
Carpal Tunnel
Reged: 07/21/05
Posts: 2699
Loc: 51°N 4°E
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Cameron,
I've started thinking along similar lines. Since the 22x85 are so big and heavy, if I need a large P-mount for it and can forget about grab-and-go, I might as well put even larger binoculars on it.
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Mark
Leica 8x20; Vixen 8x42; Swift 8.5x44, 10x50 and 20x80; TS 7x50; Orion 15x63
WO Megrez II 80 FD + Baader 90° T2 Amici
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EdZ
Professor EdZ
Reged: 02/15/02
Posts: 12581
Loc: Cumberland, R I , USA42N71.4W
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Congratulations Pier!
Cam,
a 110mm binocular is equivalent to a 130mm telescope for light.
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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Phillip Creed
Idiot Seeking Village
Reged: 07/25/06
Posts: 1033
Loc: NE Ohio
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Ed,
What would the equivalent telescope be if the scope in question was a reflector rather than a refractor?
Phil
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"Why suffer from insanity when you can revel in it?"
Wilderness Center Astronomy Club member since 1995
ICQ Comet Observer Code: CRE01
*****
16" f/4.5 Truss Dobsonian (FOR SALE!!)
Orion 120mm ST Refractor
23mm Axiom LX
13mm Nagler Type 6
9mm Nagler Type 6
1.75X Siebert Barlow
*****
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Erik D
Carpal Tunnel
Reged: 04/28/03
Posts: 2554
Loc: Central New Jersey, USA
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Quote:
Cameron,
I've started thinking along similar lines. Since the 22x85 are so big and heavy, if I need a large P-mount for it and can forget about grab-and-go, I might as well put even larger binoculars on it.
Mark,
I don't use a P-mount for my binos but,
I beleive the 22X85 Siginture is about 10 lbs. You can mount a 10 lb bino on a $150 Bogen 501 head and it will be a grab-&-go set up:
http://www.adorama.com/BG3433.html?searchinfo=Bogen%20501%20head&item_no=1
You'll need a Bogen 516 head to mount a 16 lb 28X110. It can still be a grab & go with the use of the Quick Releas Plate. But the cost is more than 3X the price of a 501 head:
http://www.adorama.com/BG516.html?searchinfo=Bogen%20516%20head&item_no=2
Another consideration besides the cost is the Bogen 516 head has a fixed 16.5 lb counter balance spring. It's designed to return a heavy video camera to Horizontal. Works best with OTA wt of 13 lb or heavier. Doesn't work very well if you mount a light weight bino(10 lb or less) and try to observe near zenith. You'll be fighting the sping tension to keep the bino pointing at +90 deg. It's a lot of $$$ to spend for mounting one ultra bino. I can use the 501 head for binos from a 2 to 12 lbs.
You can also consdier a Helix Fork mount for the 110mm. It will hold binos up to the 26 lb BT100 and cost less than a Bogen 516 head. I don't know how well it will work with a 21 in long, straight thru bino. I don't have first hand experience.
Using a P mount with a 16 lb vs 10 lb bino will add at least 12 lbs to your set up....6 more for the bino and 6 for the counter wt. It'll likly be more because you'll need longer and heavier stock for your P mount arm to support the heavier 21 in long OTA. A 16 lb bino+ 16 lb counter weight + heavy duty P mount means you'll need a heavy duty tripod too. a typical Manfotto tripod with geared center column is rated for 26 lbs.
A 28X110 bino is specialized equipment. It's a pair of 110mm ~F6 telescopes with narrow 2.3 deg FOV joined. Consider getting one if you alreadly have a 20X80 or 25X100 and really want the extra light grasp. You can easily spend more for the mount and tripod than the $650 price of the bino. I would not recommend it for someone whose previous experience with big binoculars is a 10X50 or 12X60.
Erik D
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GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
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Hi Phil,
Some years ago, Dr.Albino Carbognani has published in Italy a great review of Astromeccanica Binoscopes,
this is the box published at the end of the article
BOX
Model
Astromeccanica Dual achro 80 - Astromeccanica Dual apo 102
Magnification 29X- 37X
magn. limit. (1 eye) +11.2 -+11.4
magn theor.(1 eye) +11.3- +11.8
magn.limit. (2 eyes) +12.2- +12.7
Diameter equivalent (mm) 123mm- 151 mm
gain magnitudine +1- +1.3
Obviously there are other many factors to considering: quality of the lens, prisms, eyepieces, coating,etc etc, and "above all" the fact that binoscopes are not binoculars) but i'like this example.
Best
Pier
--------------------
[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
|
GLR GROUP
super member
Reged: 03/22/04
Posts: 188
Loc: Cugliate Fabiasco,(VA) (ITALY)
|
|
Quote:
Congratulations Pier!
Thanks Edz!
Pier
--------------------
[url] www.binomania.it [/url] you can find many binoculars reviews!
[url] www.landscapephotography.it [/url] a tribute to italian and switzerland landscapes
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