focal reducer a worthy buy?

[Puglets]

Just wandering if a focal reducer for a celestron nexstar is worth the money or not? Any opinions welcome

[carastro]

Are you imaging with it?  If so it will make your telescope faster.

Carole 

[Puglets]

Yes I was going to try dso imaging and as its stands as a f/10 it would be too slow. The focal reducer brings it to f/6.3 would that be a big difference/ worth buying?

[dazza1639]

If you are going to by a f6.3 focal reducer I would recommend that you spend a bit more and get the celestron version I bought one from scopes n skies (Antares brand I think) it was about £30 cheaper but it does suffer from kidney bean shaped stars from about 1/3 of the distance from the edge on a canon 1000d sensor. It also appears to give a larger field of view than that shown in stellarium

Darren

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Twitter: @SalAstroSoc @Astronut1639 www.salfordastro.org.uk

Nexstar 8 GPS ADM MDS Rings & Counter Weights, Skywatcher ST80 & Synguider, Canon EOS 1000d,

Dew Heaters & 4 Channel Controller, Orbit Wedge, Observatory and not enough clear nights

[dazza1639]

This is my original post about the kidney beaning problem

http://stargazerslounge.com/index.php?/topic/96891-Kidney-Beaning-Problem/page__view__findpost__p__956878

Darren

------------------------------------------------

Twitter: @SalAstroSoc @Astronut1639 www.salfordastro.org.uk

Nexstar 8 GPS ADM MDS Rings & Counter Weights, Skywatcher ST80 & Synguider, Canon EOS 1000d,

Dew Heaters & 4 Channel Controller, Orbit Wedge, Observatory and not enough clear nights

[Puglets]

Thanks Darren I was looking at the celestron version as I don't want to buy twice, you get what you pay for I guess.

[dazza1639]

Apparently the Alan Gee 0.7 focal reducer is quite good I've never used one but modern astronomy sell them. Have a chat with them. The design is quite different the reducer fits inside the rear cell so if you have a fork mount the camera should clear the base. When I use my focal reducer I can't slew to anything above 58 degrees

Darren

------------------------------------------------

Twitter: @SalAstroSoc @Astronut1639 www.salfordastro.org.uk

Nexstar 8 GPS ADM MDS Rings & Counter Weights, Skywatcher ST80 & Synguider, Canon EOS 1000d,

Dew Heaters & 4 Channel Controller, Orbit Wedge, Observatory and not enough clear nights