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Search: Posts Made By: range
Forum: Nikon Friday 17th May 2019, 08:20
Replies: 50
Views: 2,104
Posted By range
I have looked through both 7x and 10x, and played...

I have looked through both 7x and 10x, and played with 10x quite extensively.
I have no interest in 7x, though 10x is one of a kind so that price is not relevant here. After all I find nothing like...
Forum: Swarovski Thursday 4th April 2019, 00:22
Replies: 62
Views: 4,907
Posted By range
Personally I am not particularly concerned about...

Personally I am not particularly concerned about CA, but I can perceive different levels of CA control.
CL is near color free at the center but mediocre at pheriperal.
Forum: Swarovski Wednesday 3rd April 2019, 00:20
Replies: 62
Views: 4,907
Posted By range
I compared to Zeiss sf 842, victory 825, victory...

I compared to Zeiss sf 842, victory 825, victory 742, terra 825, leica 742hd, canon 1550is, steiner commander 750...and some of the bigger ones, too, basically all the binos I have at hand. The ca of...
Forum: Swarovski Tuesday 2nd April 2019, 11:54
Replies: 62
Views: 4,907
Posted By range
Chinese bins below $100 use ED glass these...

Chinese bins below $100 use ED glass these days...however they cannot compete with CL companion. But what I mean is that CL could easily have used some ed glass and achieve even better CA control.
Forum: Swarovski Tuesday 2nd April 2019, 11:52
Replies: 62
Views: 4,907
Posted By range
The modern standard is usually set at 80. Yes you...

The modern standard is usually set at 80.
Yes you are right, but half the story is still 50% weight, so large that it easily has an impact on the final result.
Forum: Swarovski Tuesday 2nd April 2019, 10:27
Replies: 62
Views: 4,907
Posted By range
I did not know why you kept talking about...

I did not know why you kept talking about coatings, now I understand.
That's the reason I ask whether ed glass is used. Official literature says nothing directly on this point, but it seems safe to...
Forum: Zeiss Tuesday 2nd April 2019, 03:38
Replies: 16
Views: 1,492
Posted By range
Correct.

Correct.
Forum: Swarovski Monday 1st April 2019, 11:27
Replies: 62
Views: 4,907
Posted By range
Actually CA is the single biggest issue of CL...

Actually CA is the single biggest issue of CL series.
Forum: Swarovski Sunday 31st March 2019, 03:26
Replies: 62
Views: 4,907
Posted By range
These said nothing about whether ed glass is used...

These said nothing about whether ed glass is used or not.
Forum: Zeiss Saturday 30th March 2019, 22:48
Replies: 16
Views: 1,492
Posted By range
The eyepiece is the culprit here. And since this...

The eyepiece is the culprit here. And since this is an objective variable system, there is even more reason to design an adapter to make full use of the numerous set focal length eyepieces.
As to...
Forum: Swarovski Saturday 30th March 2019, 08:36
Replies: 62
Views: 4,907
Posted By range
Does the new CL830 employ some kind of ED element...

Does the new CL830 employ some kind of ED element in the objective? or it's just an achromat?
On Swarovski website, EL has "fluoride-containing HD lenses", SLC is rather vague for saying they use "HD...
Forum: Zeiss Saturday 30th March 2019, 08:14
Replies: 16
Views: 1,492
Posted By range
Sorry I do not count microscopes in, I know...

Sorry I do not count microscopes in, I know nothing about them.
And yes, Schott makes them.
Forum: Zeiss Saturday 30th March 2019, 08:11
Replies: 16
Views: 1,492
Posted By range
In my community, someone has already made an 1.25...

In my community, someone has already made an 1.25 adapter.
They tested quite a lot eps, seems it's able to reach focus on most of them including HFW 12.5mm, Docter UWA, Pentax XW 20, Nikon SW 17.5, ...
Forum: Zeiss Thursday 28th March 2019, 13:11
Replies: 16
Views: 1,492
Posted By range
Kowa 88 and higlander 82(fluorite model) use...

Kowa 88 and higlander 82(fluorite model) use artificial fluorite crytstal, so do Takahashi, Borg and some photographic lenses. Zeiss APQ used one fluorite lens, but no other in production product by...
Forum: Zeiss Wednesday 7th November 2018, 15:19
Replies: 35
Views: 4,614
Posted By range
Ive drawn a line chart depicting the relation of...

Ive drawn a line chart depicting the relation of mag. and aperture.

http://bbs.imufu.cn/data/attachment/forum/201811/08/001713w1uxneheuvwvw9ut.png
Forum: Binoculars Monday 10th September 2018, 16:04
Replies: 72
Views: 4,981
Posted By range
Why not try a pair of Celestron Granite 7x33? It...

Why not try a pair of Celestron Granite 7x33? It has 159m/1000m fov.
And they are very sharp at the center.
Forum: Zeiss Friday 22nd June 2018, 02:30
Replies: 250
Views: 63,086
Posted By range
I followed the scope from the beginning so I...

I followed the scope from the beginning so I understand the principle of this design, though this lens count still came as a surprise.
I think that will have some impact, especially in twilight...
Forum: Zeiss Thursday 21st June 2018, 06:33
Replies: 250
Views: 63,086
Posted By range
It is rumored the Harpia 95 will have 14 lens in...

It is rumored the Harpia 95 will have 14 lens in its objective, that seems quite a lot. Anyone knows about it?
Showing results 1 to 18 of 18
 


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