Types of viewfinders

BlueWind

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Aug 27, 2005

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103

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Almada, Port

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35mm

• Mar 3, 2006

• #1

Hello: I apologize for the very basic nature of this question. What is really a Newtonian viewfinder and what is a Galilean viewfinder? All the information on this topic will be welcome (definitions, links, etc).
Thanks in advance
JF

 

Marco Gilardetti

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Jun 7, 2005

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Torino, Italy

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• Mar 3, 2006

• #2

Galileian type uses lenses, it's a reversed telescope. It's a refractive device.

Newtonian should use mirrors (at least partially, or in the form of prisms) . It's basically a reflective device.

 

OP

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BlueWind

Member

Joined

Aug 27, 2005

Messages

103

Location

Almada, Port

Format

35mm

• Mar 3, 2006

• #3

Thanks a lot, Marco, for your answer.
Regards
JF