• Welcome to Forum Astronomskog Magazina. Please login or sign up.
 

Uticaj barlow na ekspoziciju

Started by vasja, October 26, 2013, 09:54:00 pm

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Print
Go Down Pages1
User actions

vasja

October 26, 2013, 09:54:00 pm
Zanima me kako utiče barlow na ekspoziciju? Ako npr stavim barlow 2x, da li to znači da za istu količinu svetla mi treba 2 puta duža ekspozicija? Ili 4x duža ekspozicija?
Skywatcher 250/1200, AZ-EQ6<br/>Newton reflektor Skywatcher 250/1200<br/>Refraktor TecnoSky APO 130/900<br/>Canon EOS 60D<br/>Canon EF 70-300mm f/4-5.6L IS USM

Stojanov

October 27, 2013, 12:01:21 am #1
Barlow 1.4 = 1 blenda ili 2x duza eksp. , Barlow 2x = 2 blende ili 4x duza eksp. i td...

vasja

October 27, 2013, 12:26:07 am #2
Hvala
Skywatcher 250/1200, AZ-EQ6<br/>Newton reflektor Skywatcher 250/1200<br/>Refraktor TecnoSky APO 130/900<br/>Canon EOS 60D<br/>Canon EF 70-300mm f/4-5.6L IS USM
User actions
Print
Go Up Pages1