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Search: Posts Made By: Binastro
Forum: Others Today, 14:16
Replies: 14
Views: 408
Posted By Binastro
With 4 Eneloop white AA batteries the stabiliser...

With 4 Eneloop white AA batteries the stabiliser in the Fujinon 14x40 seems to work the same as with alkalines or lithiums, despite being 1.2v nominally instead of 1.5v.

The disturbing oscillations...
Forum: Binoculars Yesterday, 18:24
Replies: 5
Views: 119
Posted By Binastro
Vixen and other large aperture binoculars with...

Vixen and other large aperture binoculars with different sets of eyepieces.
45 degree or 90 degree angled eyepieces.

Straight through binoculars are not much fun at high elevations.

80mm to 100mm...
Forum: Binoculars Yesterday, 15:38
Replies: 9
Views: 150
Posted By Binastro
The Papilio has the objectives move axially on a...

The Papilio has the objectives move axially on a curved track, and the objectives move sideways and back and forth as they close focus.

There was I think a Minolta patent where the objectives also...
Forum: Tripod and Heads Monday 23rd April 2018, 22:00
Replies: 12
Views: 280
Posted By Binastro
I use Slik 88 tripods, which use small...

I use Slik 88 tripods, which use small studs.
These unscrew easily, but they are so handy and small, I just check tightness every time I use a scope.

But I am not carrying a scope around like...
Forum: Zeiss Monday 23rd April 2018, 21:48
Replies: 34
Views: 992
Posted By Binastro
I don't know about binoculars but some top lenses...

I don't know about binoculars but some top lenses are currently made in Germany and England.
Glass material can come from various sources.

I don't know who makes castings.

Meopta may make their own...
Forum: Binoculars Monday 23rd April 2018, 18:03
Replies: 40
Views: 741
Posted By Binastro
Retailers also don't want any unnecessary hassle,...

Retailers also don't want any unnecessary hassle, especially if they work on tight margins.

Some retailers pride themselves on service and go the extra mile.

I got out of retail very quickly even...
Forum: Others Monday 23rd April 2018, 14:02
Replies: 14
Views: 408
Posted By Binastro
Last night in a transparent sky the Fujinon...

Last night in a transparent sky the Fujinon showed Earthshine on a 50% illuminated moon.
The best binoculars even show it with a 60% illuminated moon depending on Earth cloud cover.

If the...
Forum: Others Sunday 22nd April 2018, 21:57
Replies: 14
Views: 408
Posted By Binastro
Thanks Kimmo, Yes the jitters I see are I think...

Thanks Kimmo,

Yes the jitters I see are I think the same as you describe, but possibly a bit worse than if I tried a new example.
They may possibly not be noticed on a moving boat or by a helicopter...
Forum: Zeiss Sunday 22nd April 2018, 18:57
Replies: 34
Views: 992
Posted By Binastro
Although there are a few master opticians, I am...

Although there are a few master opticians, I am not sure if any of them have the depth of experience and abilities of say James Baker in the U.S. or Horace Dall in the U.K.

Certainly the current...
Forum: Zeiss Sunday 22nd April 2018, 15:34
Replies: 34
Views: 992
Posted By Binastro
It was very surprising to me to see that lenses...

It was very surprising to me to see that lenses in the million dollar range were made in France by firms that I didn't know made hand aspheric large optics or any optics at all.

In the U.S. some of...
Forum: Others Sunday 22nd April 2018, 15:03
Replies: 14
Views: 408
Posted By Binastro
Although the specs say the IPD range is 60-70mm,...

Although the specs say the IPD range is 60-70mm, the measured range is 56mm to 73mm on this example.

I put in some fresh 20 year lithium AAs, expire December 2035.
Hmm!

They are lighter than the...
Forum: Others Friday 20th April 2018, 14:10
Replies: 14
Views: 408
Posted By Binastro
Yesterday the Fujinon didn't take long to warm...

Yesterday the Fujinon didn't take long to warm up, it was 28C.

Even when cooler it only takes perhaps 3 seconds, so no problem for me.

I am not sure if it eventually shuts down, but a red light...
Forum: Others Wednesday 18th April 2018, 14:03
Replies: 14
Views: 408
Posted By Binastro
Saw Jupiter was bright although low, no cloud,...

Saw Jupiter was bright although low, no cloud, but transparency only fair. Severe light pollution.

00.25 to 00.29 BST this morning.
Elevation 17 degrees.
Jupiter near maximum size and brightness....
Forum: Others Tuesday 17th April 2018, 21:20
Replies: 14
Views: 408
Posted By Binastro
First test of Fujinon at night near...

First test of Fujinon at night near streetlight.
Flare and ghosting control is very good, but the Canon 18x50 IS may be better.

I will try further tests.

One strange thing is that when the Fujinon...
Forum: Others Tuesday 17th April 2018, 17:43
Replies: 14
Views: 408
Posted By Binastro
The Fujinon seems to have offset roof prisms and...

The Fujinon seems to have offset roof prisms and no tripod socket.

The Canon Porroprisms and a tripod socket on the bottom.

The Canon is 50mm aperture, the Fujinon 40mm. A big difference.
Forum: Others Tuesday 17th April 2018, 16:55
Replies: 14
Views: 408
Posted By Binastro
The Fujinon has a very nice clean bright image in...

The Fujinon has a very nice clean bright image in good light.
The Canon 18x50 IS has more CA particularly near the edges of a much wider AFOV. It is also bright in good light.
The Canon also displays...
Forum: Others Tuesday 17th April 2018, 13:50
Replies: 14
Views: 408
Posted By Binastro
With the side strap removed and without the...

With the side strap removed and without the neckstrap the Fujinon weighs 1278g including 4 AAs.

The Canon 18x50 IS with 2 AAs weighs 1195g.

The Fujinon has a rain guard for the eyepieces but no...
Forum: Others Tuesday 17th April 2018, 11:43
Replies: 14
Views: 408
Posted By Binastro
Fujinon Techno-Stabi 14x40

The Beast from the East (Kamakura?).

This ancient mariner thought that the weight would be just too much, but the binocular is not that bad, although heavy.

The binocular is used, maybe well...
Forum: Minox Monday 16th April 2018, 18:28
Replies: 6
Views: 222
Posted By Binastro
Lee, Only if it was a fairly thick curry (: The...

Lee,
Only if it was a fairly thick curry (:

The problem with very accurate digital devices is how to set them.

It is possible a bench mark for Ordinance Survey is accurate to a foot above sea...
Forum: Minox Monday 16th April 2018, 13:13
Replies: 6
Views: 222
Posted By Binastro
I have some small Minox altimeter binoculars,...

I have some small Minox altimeter binoculars, maybe 8x24 where the altimeter is accurate to 2 or 3ft.
On the table one sees one height, lift it up and a different height.
I was fascinated how...
Forum: Tripod and Heads Sunday 15th April 2018, 18:13
Replies: 9
Views: 272
Posted By Binastro
Astronomers turn the pan handle backwards, if...

Astronomers turn the pan handle backwards, if there isn't a shorter one.
I.e. rotate 180 degrees.
Forum: Swift Wednesday 11th April 2018, 14:36
Replies: 14
Views: 575
Posted By Binastro
Which version?

Which version?
Forum: Binoculars Tuesday 10th April 2018, 15:27
Replies: 48
Views: 1,594
Posted By Binastro
Gijs, Does the 6x30 Libra have only the two outer...

Gijs,
Does the 6x30 Libra have only the two outer surfaces single coated?

I would be interested to know the transmission.

Is the field about 11 degrees?

If I was able to buy them at 20 euros I...
Forum: Binoculars Monday 9th April 2018, 21:34
Replies: 48
Views: 1,594
Posted By Binastro
Like numerous Chinese binoculars, the fault is...

Like numerous Chinese binoculars, the fault is cheapness, brought about by customers who want something for nothing, or are only prepared to pay the cheapest price possible.

So what happens.
There...
Forum: Binoculars Monday 9th April 2018, 15:08
Replies: 48
Views: 1,594
Posted By Binastro
Libra is a constellation. Also weighing...

Libra is a constellation.
Also weighing scales.
And maybe justice?

Also the forerunner of the pound.
Showing results 1 to 25 of 1000
 

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