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Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

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Search: Posts Made By: Binastro
Forum: Binoculars Today, 18:41
Replies: 2
Views: 112
Posted By Binastro
That is indeed good to hear.

That is indeed good to hear.
Forum: Pentax Today, 18:32
Replies: 6
Views: 184
Posted By Binastro
The most important thing regarding deep sky...

The most important thing regarding deep sky objects is how dark your viewing location is, rather than the scope being used.

Nebulas and galaxies won't be resolved except maybe the brightest such as...
Forum: Binoculars Today, 07:05
Replies: 89
Views: 2,992
Posted By Binastro
Hi adhoc, Rev Dawes had high acuity and was very...

Hi adhoc,
Rev Dawes had high acuity and was very short sighted, if my memory serves me correctly, such that he couldn't recognise people without his glasses.

However, a person with severe myopia...
Forum: Binoculars Yesterday, 18:35
Replies: 89
Views: 2,992
Posted By Binastro
People probably don't visit a doctor or optician...

People probably don't visit a doctor or optician unless there is something wrong.

I don't think that I visited an optician until I was about 40, because I didn't need to.
It was only when I had...
Forum: Binoculars Yesterday, 17:07
Replies: 89
Views: 2,992
Posted By Binastro
Thanks Lars. The paper on the Visual acuity of...

Thanks Lars.

The paper on the Visual acuity of 163 Navy pilots, 145 of whom flew F14 Tomcats, with an average of 20/8 high contrast Snellen VA points out that only 20/20 vision was measured by their...
Forum: Pentax Yesterday, 14:35
Replies: 6
Views: 184
Posted By Binastro
Hi Dd61999, Welcome. I don't actually own a 65mm...

Hi Dd61999,
Welcome.

I don't actually own a 65mm Pentax, but if I did I would expect it to be good up to 130x with astro or Pentax eyepieces.
Others here would probably expect a cautious 100x.

I...
Forum: Nikon Yesterday, 14:20
Replies: 8
Views: 197
Posted By Binastro
Nice condition, Andy. I think I have seen these...

Nice condition, Andy.

I think I have seen these and also similar Minolta and Pentax binoculars, but never owned one.
Forum: Canon Saturday 22nd September 2018, 19:27
Replies: 2
Views: 100
Posted By Binastro
Hi maico, 7.505 degrees. However, the top two...

Hi maico,

7.505 degrees.

However, the top two bright stars in Orion are about 7.55 degrees apart, so hand held it should just include these at the extreme edge. Because of slight hand movements and...
Forum: Binoculars Friday 21st September 2018, 18:56
Replies: 11
Views: 554
Posted By Binastro
Thanks Quincy, I need to reread it, and I needed...

Thanks Quincy,
I need to reread it, and I needed stronger glasses.
For some reason with this computer I cannot edit texts, so have to get it right first time.

For faintest star magnitudes or...
Forum: Binoculars Friday 21st September 2018, 16:49
Replies: 11
Views: 554
Posted By Binastro
quincy88, Unfortunately my two computers couldn't...

quincy88,
Unfortunately my two computers couldn't open this file, post 1.
Binocular Scalability.

Numerous binoculars, both Porro and roof prisms use the same back end and different objective...
Forum: Binoculars Thursday 20th September 2018, 15:45
Replies: 15
Views: 496
Posted By Binastro
Hi PYRTLE. Actually, they were used hand held...

Hi PYRTLE.

Actually, they were used hand held for everything.
Aircraft, birds, astro and anything I wanted to look at.

But I was a lot stronger then, and can't use them now hand held.

When I was a...
Forum: Spotting Scopes & tripod/heads Thursday 20th September 2018, 15:14
Replies: 6
Views: 564
Posted By Binastro
In the October 2018 Sky at Night magazine there...

In the October 2018 Sky at Night magazine there is an interesting test of the Skywatcher 150ED DS Pro refractor.
The tester notes that on planets the contrast and definition were less good compared...
Forum: Binoculars Thursday 20th September 2018, 14:43
Replies: 15
Views: 496
Posted By Binastro
Canon 10x42L IS Canon 15x50 IS Canon 18x50...

Canon 10x42L IS
Canon 15x50 IS
Canon 18x50 IS

Fujinon 14x40 Stabileyes.

Russian 20x50 and rumored 25x56 Stabilised.

Zeiss 20x60S Not that heavy for a strong person. Needs big hands. Almost astro...
Forum: Spotting Scopes & tripod/heads Monday 17th September 2018, 18:51
Replies: 12
Views: 373
Posted By Binastro
Thanks Marc for the photos and...

Thanks Marc for the photos and information.

Nikon's own 10mm monocular converter is really good if found as new. High quality and from memory 50 degree plus AFOV.
Maybe difficult to find one.
But...
Forum: Binoculars Monday 17th September 2018, 16:09
Replies: 89
Views: 2,992
Posted By Binastro
It is difficult to find actual Snellen tests of...

It is difficult to find actual Snellen tests of native Americans, Africans etc.

But Darwin reported that native south American sailors could see distant objects much better than any of his European...
Forum: Spotting Scopes & tripod/heads Sunday 16th September 2018, 16:23
Replies: 12
Views: 373
Posted By Binastro
Hi Marc, How does the Tamron 150-600 lens perform...

Hi Marc,
How does the Tamron 150-600 lens perform with the Lens2Scope adapter?
Say compared with a medium price 15 to 60 scope?

What is the clear aperture of the Tamron front lens?

I presume that...
Forum: Zeiss Thursday 13th September 2018, 18:57
Replies: 69
Views: 3,272
Posted By Binastro
Good reply (:

Good reply (:
Forum: Zeiss Thursday 13th September 2018, 18:38
Replies: 69
Views: 3,272
Posted By Binastro
Just saw Putin on the news using, I think, a...

Just saw Putin on the news using, I think, a Zeiss type 10x50 Russian Porroprism binocular on his latest military outing.
With gold trim on front objective cell covers. A bit shiny maybe, but maybe...
Forum: Binoculars Thursday 13th September 2018, 15:30
Replies: 89
Views: 2,992
Posted By Binastro
Landing fast heavy jets on aircraft carriers in...

Landing fast heavy jets on aircraft carriers in the dark is I think partly black magic.
It is probable that more than good eyesight is needed.

With faint vision experienced observers report that...
Forum: Binoculars Thursday 13th September 2018, 10:10
Replies: 89
Views: 2,992
Posted By Binastro
The problems with the reports of Veronica Seider...

The problems with the reports of Veronica Seider is that journalists have no knowledge of what they are reporting.
Even so called science journalists in top newspaper get it totally wrong. However,...
Forum: Binoculars Wednesday 12th September 2018, 16:28
Replies: 89
Views: 2,992
Posted By Binastro
Because of patient confidentiality the results of...

Because of patient confidentiality the results of medical tests of eyes are only normally available to medical practitioners.

Sometimes papers are written and published in medical journals one to...
Forum: Binoculars Sunday 9th September 2018, 17:28
Replies: 89
Views: 2,992
Posted By Binastro
Re. Post 68. I don't think that seeing the 3...

Re. Post 68.

I don't think that seeing the 3 colours on a 1972 T.V. set is that difficult.
It depends how near the screen one is.
With exceptional vision it may be that the normal distance shows the...
Forum: Binoculars Sunday 9th September 2018, 16:10
Replies: 13
Views: 598
Posted By Binastro
The problem for me with this method of viewing is...

The problem for me with this method of viewing is that the binocular is just not steady.
It is only when I have firm contact with the eyecups that I see a steady image.

That is why I am unhappy with...
Forum: Binoculars Sunday 9th September 2018, 16:00
Replies: 89
Views: 2,992
Posted By Binastro
I would treat the following with caution as I...

I would treat the following with caution as I don't trust internet information.

Veronica Seider born Stuttgart 1951, a dentist, was tested in October 1972 when she was still a student.

Her visual...
Forum: Leica Thursday 6th September 2018, 15:59
Replies: 8
Views: 476
Posted By Binastro
Safran Vectronix Vector 23 Rangefinding binocular...

Safran Vectronix Vector 23 Rangefinding binocular 906098.
Range up to 25,000m.

Only $21,000.
Not sure if one can buy this nice piece of kit.
Showing results 1 to 25 of 1000
 


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