john smith
member
Reged: 01/01/07
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: edwincjones]
#5399441 - 09/02/12 11:17 AM
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Thanks for the write up, I like the 80mm size along with its quality.
John Smith
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Stellarfire
Pooh-Bah
Reged: 07/10/11
Loc: Switzerland
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: john smith]
#5399683 - 09/02/12 01:56 PM
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Yes, 80mm binoculars have the perfect grab-n-go size.
Stephan
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titanio
sage
Reged: 02/15/09
Loc: Alicante, Spain
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: Stellarfire]
#5402641 - 09/04/12 10:08 AM
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Hi all
My first Idea was to buy the Kowa Highlander, but I changed my mind, I wanted to have very nice terrestrial binoculars, with the possibility of using them also in astronomy. I wanted something with good power, good optical system, light enough for easy transportation and a reasonable price.
I think the Docters has everything I need to have, and I am very happy with this pair of binocular. I have two telescopes, so the Doctor Ascpectem is the ideal complement for them.
Toni
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: titanio]
#5405971 - 09/06/12 02:21 AM
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after coming to the realisation that fuji 40x150 ed are no longer made,even though retailers still advertise them.i decided to buy the doctor ed 40x80 .they are excellent,but i also noticed a yellow tinge in the image,but only at the extreme edge of the field.i did not notice it elsewhere.the field feels larger than the 2.2 degree advertised.and i can only just see the field stop.im glad the eyepieces dont go beyond 84 degrees.i decide to buy these instead of the kowas,as i dont need 45 degree eyepieces for daytime observing.and the 40x magnification is excellent.
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Andresin150
Pooh-Bah
Reged: 08/14/07
Loc: Bogotá - La Calera / Colombia
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5406250 - 09/06/12 09:56 AM
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Since I have the Fujis and enjoy them almost every day and some nights, I guess I'll just wait until Kowa releases their new products... I feel the warm tint in all the FOV in the Docters (not at all in astro use, there the image is outstanding, just at daytime) and would really like to see a neutral or colder image... that yellowish cast that makes the blue of the sky kind of green unfortunately transmits me a sad feeling... don't know exactly why or how to explain it...
Maybe its just me trying to convince myself not too spend much more money on binoculars...  , specially since those Docters are the closest to perfect I've seen in a long time.
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titanio
sage
Reged: 02/15/09
Loc: Alicante, Spain
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: Andresin150]
#5406318 - 09/06/12 10:38 AM
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I don’t see any yellowish in the Docter at daytime. So far the only yellowish I have seen in the Doctor is a tiny line but only when I put the eyes in bad position, normally the sky is dark blue and the whites, only depending on the daylight can be seen less white but never yellowish, I would say, yes a little bit warm when it is hot.
Toni
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: titanio]
#5406989 - 09/06/12 06:00 PM
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after several hours of observing with the doctor's i have not noticed any false colour around birds,or tree branches.2 objects which usually reveal such distortions.and last night the moon looked brilliant,with no false colour to be seen anywhere.what really surprised me was how big the moon looked,and how much detail could be seen.amazing for 80mm objectives.i think they were an excellent buy,considering they were substantially cheaper than the competition,and came with a hardcase.
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GlennLeDrew
Postmaster
Reged: 06/18/08
Loc: Ottawa, Ontario, Canada
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5407047 - 09/06/12 06:47 PM
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Why 'amazing for 80mm objectives?' Assuming the objectives are of astronomical quality, at the 2mm exit pupil they're working at, their full resolving power is not being exploited. A cheap 60mm refractor will offer better resolution when working at around a 1mm exit pupil. A side-by-side view of, say, Jupiter would make this clear.
With this binocular, the real miracle derives just about as much from well made prisms as it does from good objectives. And that the exit pupil is just about at the ideal size for delivering a balance of resolving power and image surface brightness really strengthens the impact of the views it delivers.
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: GlennLeDrew]
#5407310 - 09/06/12 09:27 PM
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OH NO! it appears i just wasted $3500.i should have got a cheap 60mm tasco refractor instead.
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GlennLeDrew
Postmaster
Reged: 06/18/08
Loc: Ottawa, Ontario, Canada
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5407485 - 09/06/12 11:20 PM
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Said with tongue firmly planted in cheek, right, Warps? 
I'm not advocating that a 60mm refractor is the better instrument across the board; but it is equipped to be able to extract maximum resolution from its aperture, whereas this bino is not, being fixed at a 2mm exit pupil.
Anyone who knows me will not have to be convinced that I would prefer this bino to even a large, excellent, telescope. My remarks are not intended to be denigratory; only to provide some optical perspective.
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: GlennLeDrew]
#5407647 - 09/07/12 01:51 AM
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yes,of course.i often speak with my tounge stuck in my cheek.and you are correct.when i want maximum resolution,i observe with my 6 inch refractor,straight through,with no diagonal.but my doctor ed binos are a huge leap in qualty over my previous 20x90's.i think they are brilliant.
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StarBucket
sage
Reged: 02/03/10
Loc: Scandinavia - 55° 36'
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5408023 - 09/07/12 10:33 AM
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OH NO! it appears i just wasted $3500.i should have got a cheap 60mm tasco refractor instead.
Two 60mm refractors and some duct tape
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Andresin150
Pooh-Bah
Reged: 08/14/07
Loc: Bogotá - La Calera / Colombia
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: StarBucket]
#5408538 - 09/07/12 03:15 PM
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I had a different experience. At first, when looking at the Moon with the Fujis and then with the Docters the Moon seemed smaller, but that was because of the huge difference in AFOV. As you can infer, that was just an optical illusion (because by seeing more TFOV in the Docters the image in my mind shrunk the Moon... or something like that) that after a couple minutes thanks to the side by side comparison it was obvious that the image scale was the same, just a lot more of sky to look at in the Docters, amazing!.
As I said before, it was very hard to notice CA with the Docters while in the Fujis, just a slight misplacement of my pupils revealed a tiny fringe of color. The Moon is amazingly 3D in the Fujis while in the Docters is is kind of flat. For the Moon, I like the brightness in the Docters, in the Fujis I have to use a pair of cheap modified Moon filters to see it comfortably.
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: Andresin150]
#5408757 - 09/07/12 04:54 PM
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actually,my first priority was to buy the big fuji's,but they are not available anymore.so i had to settle for the doctor's.and as far as the small exit pupil? it is not a problem where i live because the light pollution is getting worse anyway.last nights observing revealed pinpoint stars across the whole field.and i noticed if i dont get my eyes close enough to the eyepieces,the yellow tinge becomes more obvious.but compared to the cheap asian bino's i looked through in the past,they are worth the extra money.
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titanio
sage
Reged: 02/15/09
Loc: Alicante, Spain
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5408974 - 09/07/12 07:23 PM
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I had the big Fuji’s, the 25x150ED. They are very nice binoculars, but these Docters at 40x have something special, it does not mean the Docters are better or the Fujis are better, just for me I like more the Docters in General: weight, portability, easy use,... and I see more details with the Docters because the 40x, different thing would be to have the 40x150 ED fujis and to have the right place for them. Although I use them in terrestrial observation I find them very appropriate for astronomical observation as well, above all on globular and open clusters, and even for space walk and observing the moon. for other astonomical use I prefer my telescopes. So far I have not seen any tinge yellow.
Toni
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warpsl
member
Reged: 07/04/12
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: titanio]
#5413806 - 09/10/12 05:42 PM
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after spending the last 5 days obseving with my new doctor's.i think they should be labelled 40x80 apo.i think the term ed is an understatement.i was observing rainbow lorrikeets yesterday(australian bird species) and the colours were so strong and vibrant,and the intricate detail that i could see was stunning.if there are better binos available,i have yet to look through them.regarding the yellow tinge,i dont notice it anymore.the colours that i see are neutral/natural.i think it has something to do with eye placement on account of the 2 mm exit pupils.it has taken me a few days to become accustomed to them.
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Andresin150
Pooh-Bah
Reged: 08/14/07
Loc: Bogotá - La Calera / Colombia
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: warpsl]
#5413926 - 09/10/12 06:58 PM
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Guess what... now the Docters are the newest member of my collection! My friend Toni sold them to me... thanks Toni! Now I have a truly powerful grab and go setup.... lets wait now for Kowa to update their prominars....
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titanio
sage
Reged: 02/15/09
Loc: Alicante, Spain
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: Andresin150]
#5415896 - 09/11/12 06:40 PM
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Congratulation  now you have a very nice collection.
Let´s see if now, I can decide to go for the Zoom Docter Aspectem
Toni
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OpalescentNebula
sage
Reged: 01/11/07
Loc: Calgary, Alberta, Observing so...
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: titanio]
#5416558 - 09/12/12 01:48 AM
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Congradulations very nice combination having the two.
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johndgaul
member
Reged: 05/19/11
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Re: DOCTER ASPECTEM 40X80ED and FUJINON 40X150ED
[Re: Andresin150]
#5417974 - 09/12/12 07:54 PM
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Quote:
Guess what... now the Docters are the newest member of my collection! My friend Toni sold them to me... thanks Toni! Now I have a truly powerful grab and go setup.... lets wait now for Kowa to update their prominars....
Excellent! Sorry I have yet to write up my experience using my 40x80ED so far. I made a bracket to fit them (upside down) to the Starchair 3000, using some 6mm steel bar, horizontal, with a kink bent into it (to bring the binos lower so I don't bump my head on the handle bar bit) and a Manfrotto 577 dovetail saddle. So it's interchangeable with the 501HDV head on a tripod. Seems to work quite well, but the clouds descended of course as soon as it was finished so I haven't had first light with them properly mounted on the Starchair And now I am in London for a few weeks and the Starchair is in the countryside...
I guess you may not be so interested in mounting to the Starchair if you've also got the big Fujis in a semi-permanent installation, but just thought I'd mention the Manfrotto 577 in case you do.
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