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Old school sun observation

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pedro
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Old school sun observation

Post by pedro » Thu Jul 18, 2019 9:26 pm

Old school sun observation

Check out two extremely rare pieces of equipment for observing the Sun:

1- Clave' Helioscope (triple-prism erector)
2- Clave' Pentaprism (90º Helisoscopic pentaprism )

Available from Clave' (Paris) in the seventies (images from my private collection).

Imageclave_catalogue_MOSAIC by Pedro Ré, on Flickr

Imageclave_catalogue-10 by Pedro Ré, on Flickr

Imageclave_catalogue-12 by Pedro Ré, on Flickr~~

ImageCLAVE_solarwedge_20170601-03 by Pedro Ré, on Flickr

ImageCLAVE_solarwedge_20170601-01 by Pedro Ré, on Flickr

ImageCLAVE_solar_wedge_20171216-05 by Pedro Ré, on Flickr

ImageCLAVE_solar_wedge_20171216-04 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-29 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-27 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-27 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-22 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-20 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-19 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-17 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-15 by Pedro Ré, on Flickr

ImageHelioscope_Clave_20190718-10 by Pedro Ré, on Flickr
Last edited by pedro on Fri Jul 19, 2019 2:00 pm, edited 2 times in total.

AndiesHandyHandies
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Re: Old school sun observation

Post by AndiesHandyHandies » Thu Jul 18, 2019 10:58 pm

Very nice.

I use a 25mm Clave' on my Vixen VMC110 mod.

Andrew

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Re: Old school sun observation

Post by marktownley » Fri Jul 19, 2019 5:33 am

Interesting bits of kit Pedro!
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Montana
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Re: Old school sun observation

Post by Montana » Fri Jul 19, 2019 6:44 pm

Very nice Pedro, I have no idea what they are :)

Alexandra

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pedro
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Re: Old school sun observation

Post by pedro » Fri Jul 19, 2019 7:14 pm

Thanks Alexandra

These two Clave' acc are similar to Herschel Wedges.

The Pentaprism has a fitted X2 barlow and a neutral density filter and the Heliscope has 3 prisms in-line producing 5 reflexions

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Re: Old school sun observation

Post by MAURITS » Sat Jul 20, 2019 10:16 am

It looks special Pedro.
Regards,
Maurits

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Re: Old school sun observation

Post by Valery » Sat Jul 20, 2019 2:39 pm

Nice equipment!

Many many years ago I have used Zeiss pentaprism with 6" Zeiss apochromat in the local public observatory.


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Re: Old school sun observation

Post by MapleRidge » Sun Jul 21, 2019 6:52 pm

Great collection of equipment Pedro :bow

They are all new to me, thanks for explaining them!

Brian
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Maple Ridge Observatory

Cambray, ON Canada

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