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Solarscope SF70

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#1 asaint

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Posted 27 June 2008 - 06:11 AM

Solarscope SF70

#2 Ralph Marantino

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Posted 27 June 2008 - 06:15 AM

Super excellent review thanks a bunch. :bow:

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#3 michaeloconnell

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Posted 27 June 2008 - 12:56 PM

Good article Jeff. Thanks for writing it.

#4 Jim Rosenstock

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Posted 27 June 2008 - 03:28 PM

Great article, WONDERFUL sketches.

I like your wife's advice "to get something that 'you know will meet your expectations. I don't want to listen to you complaining if it doesn't.'" I thought I was taking her advice when I got my DS SM40, instead of an "entry level" PST...but perhaps I should have reached a little farther....(in any case, I have a 60DS Lunt on order; I guess I'll figure out soon enough if THAT's a big enough quantum jump for me....)

Thanks for a great review.

Sunny skies,

Jim

#5 Solar B

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Posted 27 June 2008 - 04:09 PM

Great review of the best HA filter currently available...
until they release the 100mm :cool: Brian

#6 colinsk

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Posted 27 June 2008 - 07:22 PM

Thank you Jeff, very well written and informative.

#7 Jeff Young

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Posted 28 June 2008 - 06:33 AM

Thanks, everyone! (I'm travelling right now but I'll check back in Monday.)

And if anyone wants to send me the 100, I'll be happy to do a compare. I give no guarantees on which one I'll send back, though....

Cheers,
-- Jeff.

#8 naglertized

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Posted 28 June 2008 - 08:09 PM

Great review! Your sketches are almost like B&W photos.

How does the Pronto perform optically?

#9 Special Ed

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Posted 29 June 2008 - 06:17 AM

Jeff,

A fine article--thorough, fun to read, and informative. Nice illustrations, too. ;)

#10 kfred

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Posted 29 June 2008 - 09:10 AM

Excellent review!

Fred

#11 Jeff Young

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Posted 29 June 2008 - 09:41 AM

Clinton --

I was surprised at how much I liked the Pronto. The mechanical construction is better in the flesh than it looks in pictures.

That being said, I did no more than 15 minutes of observing in full-spectrum light (to work out what spacers I'd need with various Barlow/OCS/bino-viewer combinations). During that time I certainly noticed that the image was considerably better off-axis than my Nikon 18x70s, but then you'd expect that. I was also left with a slight impression that the contrast was less than I'm used to in the Tak FC-100, but I didn't do a side-by-side so it remains just a weak impression.

With the Solarscope filter, the performance is excellent. But, I'm only using a single wavelength, and I'm viewing mostly on-axis (the lowest power I use shows a field less than 3/4 of a degree, which for a 70mm f/6.8 is not very far off-axis). So while I'm quite happy with it, I'd be somewhat uneasy about extrapolating into more general viewing conditions -- simply because I have very little data there.

Cheers,
-- Jeff.

#12 naglertized

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Posted 29 June 2008 - 08:54 PM

Thanks Jeff. May you have many fine days under the sun.


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