focus range with a 0.5 focal reducer?

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focus range with a 0.5 focal reducer?

Postby steve99 » Sun Oct 04, 2015 12:20 pm

Hi, If I use a 0.5 focal reducer would that reduce the back focus on a telescope or extend it? Would I need an extension tube or would the range of focus be shorter?

Thanks in advance
Regards Steve

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Re: focus range with a 0.5 focal reducer?

Postby martin_h » Sun Oct 04, 2015 8:49 pm

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Re: focus range with a 0.5 focal reducer?

Postby steve99 » Wed Oct 07, 2015 6:24 am

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Re: focus range with a 0.5 focal reducer?

Postby miked2111 » Wed Oct 07, 2015 8:25 am

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Re: focus range with a 0.5 focal reducer?

Postby steve99 » Fri Oct 09, 2015 11:53 pm

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Re: focus range with a 0.5 focal reducer?

Postby steve99 » Sun Oct 11, 2015 5:41 pm

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Re: focus range with a 0.5 focal reducer?

Postby Thom » Tue Oct 13, 2015 1:47 pm

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