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Showing results 1 to 14 of 14
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Search: Posts Made By: jring
Forum: Kowa Saturday 12th August 2017, 18:45
Replies: 54
Views: 10,891
Posted By jring
Hi, the problem is that it's not possible to...

Hi,

the problem is that it's not possible to build an adapter with easy to use long screws and enough infocus for all EPs. So they built one version with long screws which can be used with EPs that...
Forum: Kowa Saturday 12th August 2017, 15:05
Replies: 54
Views: 10,891
Posted By jring
Hi, there is another adapter with grub screws -...

Hi,

there is another adapter with grub screws - less easy to use but a little more...
Forum: Kowa Thursday 3rd August 2017, 08:04
Replies: 54
Views: 10,891
Posted By jring
Hi, well the difference between 500 and 510mm is...

Hi,

well the difference between 500 and 510mm is not so big... in astro scopes that might be within tolerance - with spotters with their small focus travel, things need to be a bit more...
Forum: Kowa Wednesday 2nd August 2017, 20:27
Replies: 54
Views: 10,891
Posted By jring
Hi, 343mm is the length of the body. The focal...

Hi,

343mm is the length of the body. The focal length is certainly longer as there is the eyepiece and also some extra light path in the image erecting prism...

Also Kowa fixed mag EPs are usually...
Forum: Kowa Tuesday 11th July 2017, 06:21
Replies: 54
Views: 10,891
Posted By jring
Hi, yes, the Kowa 88mm has a focal length of...

Hi,

yes, the Kowa 88mm has a focal length of 510mm.

You could measure the change of focal point of the barlow on an astro scope by measuring the focal point without and with barlow and the same EP...
Forum: Kowa Monday 10th July 2017, 11:59
Replies: 54
Views: 10,891
Posted By jring
Hi, nice stuff... definitely try the 13mm Nagler...

Hi,

nice stuff... definitely try the 13mm Nagler for a super wide 39x view - that's 2.1 deg or 36/100m - that's almost as much as the zoom has at 25x (2.4 deg or 42/1000m).

The school of thought...
Forum: Kowa Sunday 9th July 2017, 21:30
Replies: 54
Views: 10,891
Posted By jring
Hi, yes indeed 96x at the top end of the...

Hi,

yes indeed 96x at the top end of the extended zoom would be nicer... but he doesn't have the extender yet... so 100x for almost free is a good thing...

Joachim
Forum: Kowa Sunday 9th July 2017, 18:30
Replies: 54
Views: 10,891
Posted By jring
Indeed, but it means 100x for just the price of...

Indeed, but it means 100x for just the price of the adapter as the Radian is from his girlfriend's astro gear...

It might be interesting to know what other EPs are available - maybe a 1.25" barlow...
Forum: Kowa Sunday 9th July 2017, 11:00
Replies: 54
Views: 10,891
Posted By jring
Hi, the 2" barlow won't help, I'm...

Hi,

the 2" barlow won't help, I'm afraid...

Joachim
Forum: Kowa Sunday 9th July 2017, 07:13
Replies: 54
Views: 10,891
Posted By jring
Hi, you might ask if she has a barlow lens which...

Hi,

you might ask if she has a barlow lens which will act like the extender and give a higher mag with the longer eyepieces...

Joachim
Forum: Kowa Saturday 8th July 2017, 20:13
Replies: 54
Views: 10,891
Posted By jring
Hi, that lady got taste! What other treasures...

Hi,

that lady got taste! What other treasures might be found in her secret stash of astro gear?

By all means get the adapter and try it... if it comes to focus it should offer a good view.

Joachim
Forum: Kowa Saturday 8th July 2017, 14:01
Replies: 54
Views: 10,891
Posted By jring
Hi, 170x terrestially is not going to be great -...

Hi,

170x terrestially is not going to be great - quite dark due to 0.5mm exit pupil, you will see any floaters you have and usually the seeing is not good enough to make it useful.

I'd recommend to...
Forum: Kowa Friday 7th July 2017, 09:15
Replies: 54
Views: 10,891
Posted By jring
Hi, yes the extender is also a very good option,...

Hi,

yes the extender is also a very good option, thanks to Kimmo for mentioning it.

There's at least two people on cloudynights using an 883 for astro - you might ask them about their experiences...
Forum: Kowa Thursday 6th July 2017, 18:14
Replies: 54
Views: 10,891
Posted By jring
Hi, the adapter is from Teleskop Express - they...

Hi,

the adapter is from Teleskop Express - they actually have two but since most spotting scopes with astro EPs tend to have the problem of not enough infocus, take the flatter...
Showing results 1 to 14 of 14
 


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