Binoskats - neizdodas nofokusēt

Par teleskopu aksesuāru izvēli un to pielietojumu

Binoskats - neizdodas nofokusēt

Postby Sandis » 16 Jan 2011, 14:22

Sveiki,

nopirku lietotu binoskatu. Atradu aprakstu http://www.teleskop-express.de.

TS Optics Binoviewer - for comfortably using your telescope with both eyes!
... for 1.25" eyepieces. Can be used on most telescopes with 1.25" adaptation.

Can I use the TS Binoviewer on my telescope?

Essentially the binoviewer can be used on any telescope which accepts 1.25" eyepieces. However it does consume about 100mm optical length, meaning that in many telescopes you will need to use a glass path corrector in order to reach a focused image.

In straight through vision the binoviewer can be focused in most refractors that work with a 2" star diagonal.

Many Maksutov-Cassegrains and virtually all Schmidt-Cassegrains have sufficient focusing range so that you will usually not need a glass path corrector.

In Newtonians, in refractors that only work with a 1.25" diagonal or in almost any refractor when you wish to use the diagonal along with the binoviewer you will need a glass path corrector. Most refractors work with the TS 1.6x glass path corrector. Newtonians usually require the 2.5x glass path corrector.

Pirkumam līdzi nāca, laikam jau minētais "glass path corrector".

Apraksts no http://www.teleskop-express.de, tai detaļai, kas vizuāli līdzīgai tai, kas ir man:


TS Optics 1.6x Glass Path Corrector and Barlow Lens Element with 1.25" filter thread
... suitable for many binoviewers with 1.25" telescope adaptation.

The corrector is simply screwed into the 1.25" filter thread of your binoviewer or eyepiece. The effective magnification will depend on the distance between the corrector and the eyepiece.

Magnification Factor:

-- When screwed directly into the eyepiece ... usually approx. 1.6x
-- When screwed into the 1.25" barrel of a binoviewer ... usually approx. 2.5x to 2.8x

Meģināju binoskatu lietot gan bez diagonāles, gan ar diagonāli un skrūvējot minēto detaļu gan galā binoskatam, gan galā okulāram - iegūt fokusētu attēlu neizdodas.

Varbūt manam teleskopam tas vienākši nav lemts? :)

Mans teleskops - Synta refraktors 120/600, ir arī 2" izeja.

Varbūt ir kādas idejas, kas pie vainas?
Sandis
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Re: Binoskats - neizdodas nofokusēt

Postby Andris R » 16 Jan 2011, 15:50

Kaut gan neesmu lietojis binoskatu, problēmasbūtība ir skaidra. Visupirms - izmantot noteikti varēs, vismaz principiālu problēmu nesaskatu. Ceru, kāds atsauksies, kas saskāries praksē ar līdzīgu gadījumu, un vārēs dot īsāko atbildi.
Būtībā risinājums ir pirmajā minētajā aprakstā(...Most refractors work with the TS 1.6x glass path corrector...).
Ja lieto Barlow lēcu, principā var panākt jebkuru garāku fokusu (...kaut līdz bezgalībai :) ), t.i. - ''ja kas...''
Pagaidām neizvērsīšos, domāju, būs citi praktiskāki padomi, no binoskatu lietotājiem...
Andris R
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