Search found 80 matches

by rbenton
Thu Dec 15, 2016 12:56 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Autofocusing coming to Genika
Replies: 8
Views: 4633

Re: Autofocusing coming to Genika

This looks great. What sort of focuser is required to take advantage of this feature?

Randall Benton
by rbenton
Fri Dec 09, 2016 6:54 pm
Forum: Solar Scope Modifications
Topic: Piggyback for Lunt LS100?
Replies: 0
Views: 9957

Piggyback for Lunt LS100?

I want to piggyback a small camera onto my Lunt LS100. Does anyone know where I can get the proper clamshell ring that would accommodate such a rig? JMI makes some but I don't know if they are the right size. Thanks for any suggestions.

Randall Benton
by rbenton
Thu Dec 01, 2016 6:05 pm
Forum: This is SolarChat !!
Topic: SKY & SEA | ASTROPHOTOGRAPHY & UNDERWATER PHOTOGRAPHY EXHIBITION
Replies: 14
Views: 2262

Re: SKY & SEA | ASTROPHOTOGRAPHY & UNDERWATER PHOTOGRAPHY EXHIBITION

Nice work Pedro. I assumed I was the only underwater photographer on the SolarChat forum. Of course it is usually unwise to assume anything. If you are interested, you can see some of my U/W work at: www.randallbenton.com

Beautiful work, and congratulations on the exhibit!

Randall Benton
by rbenton
Wed Nov 09, 2016 8:27 am
Forum: This is SolarChat !!
Topic: Better seeing than usual on Nov 7
Replies: 11
Views: 1816

Re: Better seeing than usual on Nov 7

Simply gorgeous images Lou. I love the way you process your images, and these are really spectacular. For me, this is the level to strive for. Nice work.

Randall Benton
by rbenton
Fri Sep 23, 2016 7:45 pm
Forum: Solar Astronomy Shop and Swap
Topic: FOR SALE: 6mp PGR Grasshopper3
Replies: 4
Views: 4643

Re: FOR SALE: 6mp PGR Grasshopper3

This item has sold.
by rbenton
Wed Sep 07, 2016 6:01 pm
Forum: Solar Astronomy Shop and Swap
Topic: FOR SALE: 6mp PGR Grasshopper3
Replies: 4
Views: 4643

Re: FOR SALE: 6mp PGR Grasshopper3

I still have this camera for sale, but I have dropped the price to $1,800.00 US.
by rbenton
Wed Sep 07, 2016 6:53 am
Forum: This is SolarChat !!
Topic: Bedeviled by DS LS100
Replies: 6
Views: 1291

Re: Bedeviled by DS LS100

Images are similar when single stacked also, but the affect is less obvious. I use Autostakkert to stack the images. The good people at Lunt made the same suggestion as ERoel did, so I'll try that this weekend. Thanks for all the suggestions.

Randall Benton
by rbenton
Mon Sep 05, 2016 2:40 am
Forum: This is SolarChat !!
Topic: Bedeviled by DS LS100
Replies: 6
Views: 1291

Bedeviled by DS LS100

I just got my DS LS100 back from Lunt for service, and my original problem persists. I sent them a detailed description of the issue, with sample images. The invoice from the techs at Lunt said: "Sent in due to possible leak in system. Tested, resealed cavity, retested, cleaned. OK to return to...
by rbenton
Sun Aug 28, 2016 5:50 am
Forum: Solar Astronomy Shop and Swap
Topic: FOR SALE: 6mp PGR Grasshopper3
Replies: 4
Views: 4643

Re: FOR SALE: 6mp PGR Grasshopper3

I have decided to reduce the price for this great camera. So, for anyone looking for a great deal on a superb camera, I will sell it for $2,200.
by rbenton
Fri Aug 19, 2016 6:28 pm
Forum: Solar Astronomy Shop and Swap
Topic: FOR SALE: 6mp PGR Grasshopper3
Replies: 4
Views: 4643

FOR SALE: 6mp PGR Grasshopper3

I am selling my 6mp PGR Grasshopper3. (GS3-U3-60QS6M-C) I bought it in May 2016 and used it about a dozen times, so it is still just like new. I think it may have been a bit too much camera for me as I am new to this hobby. I plan to replace it with a more modest model. I paid $2,800.00 USD, and I w...
by rbenton
Mon Aug 01, 2016 11:50 pm
Forum: This is SolarChat !!
Topic: 15 minutes of sunshine & Canon info
Replies: 15
Views: 2656

Re: 15 minutes of sunshine & Canon info

Thanks for the tutorial! In Photoshop there are always 1,000 ways to skin a cat. I have tinkered with countless ways to color my discs, but I think I will adopt this one.

Randall Benton
www.randallbenton.com
by rbenton
Wed Jul 06, 2016 5:56 pm
Forum: This is SolarChat !!
Topic: Camera overheating
Replies: 8
Views: 1140

Re: Camera overheating

Christian Viladrich, what does your passive heat dissipation look like?

Randall Benton
by rbenton
Tue Jul 05, 2016 8:23 pm
Forum: This is SolarChat !!
Topic: Camera overheating
Replies: 8
Views: 1140

Camera overheating

I am using a 6mp PGR Grasshopper3 and it often will overheat and shut down. I live in norther California and the temperatures can get into the high 90s. Of course this camera was probably not designed to work in the direct sunlight during the California summer heat. I contacted Point Grey, but they ...
by rbenton
Mon Jul 04, 2016 8:48 pm
Forum: This is SolarChat !!
Topic: Anyone else using a DS LS100 w/ 6mp PGR Grasshopper?
Replies: 0
Views: 7972

Anyone else using a DS LS100 w/ 6mp PGR Grasshopper?

I have a LS100 w/DSII and a 6mp PGR Grasshopper3. I thought that after a little practice I could make nice FD images like others on this forum. However, I cannot get the FD entirely 'on-band.' So my questions are: Do others have this same 'sweet spot' issue with this configuration? Am I simply not t...
by rbenton
Fri Jun 24, 2016 4:31 am
Forum: This is SolarChat !!
Topic: ISS transit
Replies: 3
Views: 546

ISS transit

Although not a sharp as rxdeath's video, this is my first attempt at the ISS transit on Wednesday, June 22, 2016. Thanks to rxdeath, and to CalSky for their predictions.

Randall Benton

https://vimeo.com/172062313
by rbenton
Fri Jun 24, 2016 3:00 am
Forum: This is SolarChat !!
Topic: AVI is too long
Replies: 2
Views: 441

Re: AVI is too long

VirtualDub worked perfectly. Thanks for the advice cshahar
by rbenton
Fri Jun 24, 2016 2:17 am
Forum: This is SolarChat !!
Topic: iss transit
Replies: 8
Views: 1103

Re: iss transit

Beautifully done sir! I should post mine, too, even though yours is much better.

Randall Benton
by rbenton
Thu Jun 23, 2016 5:53 pm
Forum: This is SolarChat !!
Topic: AVI is too long
Replies: 2
Views: 441

AVI is too long

I accidentally recorded an .avi for far too long and it is 23gb. Way too big for AS!2 to handle. Is there a way to trim it to just the first 500 frames so I can process it?

Randall Benton
by rbenton
Sun Jun 19, 2016 6:03 am
Forum: This is SolarChat !!
Topic: first effort at inverted FD from June 17
Replies: 5
Views: 1010

first effort at inverted FD from June 17

Still learning how all this works. I thought I would experiment in PS with an inverted image. I like what it does for filaments, and the brighter limb makes it easier to mate with a separate exposure of proms. This full disc image is a composite of surface+proms exposures. My exposure of the proms h...
by rbenton
Thu Jun 16, 2016 12:23 am
Forum: This is SolarChat !!
Topic: Making slow progress
Replies: 10
Views: 1084

Re: Making slow progress

Thanks to all for the encouragement. I have watched many of Mark Townley's tutorials and at first applied them all to my images. I now realize that each serves a purpose, but applying them all was just torturing the reality out of my efforts. I am till striving for the delicate details i see in the ...
by rbenton
Wed Jun 15, 2016 4:44 pm
Forum: This is SolarChat !!
Topic: Making slow progress
Replies: 10
Views: 1084

Making slow progress

I have tried this about six times now, and after getting some great advice from forum members, I see some improvement. I am still disappointed with the results compared to others on this forum, however. Specifically, using cameras with lower resolution than the one I am using, others seem to be gett...
by rbenton
Fri Jun 10, 2016 6:19 pm
Forum: This is SolarChat !!
Topic: Learning to get 'on-band'
Replies: 4
Views: 711

Re: Learning to get 'on-band'

Thanks for the advise OTangen. I will try this today. Can you describe how to rotate the ERF in the focuser? It sounds like you have the B3400 which is what I have as well. I removed the focuser, but I don't see how to rotate the ERF within it. Anyway thank you very much for the suggestions. Randall...
by rbenton
Thu Jun 09, 2016 7:42 pm
Forum: This is SolarChat !!
Topic: Learning to get 'on-band'
Replies: 4
Views: 711

Learning to get 'on-band'

I have added a DSII to my Lunt LS100 and I am quite confused about the tuning. The instructions are not too specific so I feel like I am just blindly twisting the tuners until it looks good. There must be a better method than this. Even so, my best efforts result in a full disc which is not entirely...
by rbenton
Thu May 26, 2016 7:15 pm
Forum: This is SolarChat !!
Topic: First effort
Replies: 8
Views: 1299

Re: First effort

Thank you for the advice! I used a Lunt LS100, PGR Grasshopper3 (6mp), Firecapture 500 frames @ 25fps, Registax using wavelet sharpening with all sliders at 10-15%, and Photoshop using Highlight/Shadow adj, and to combine the surface and proms images. I colored it by adding a layer to the final BW i...
by rbenton
Thu May 26, 2016 3:56 pm
Forum: This is SolarChat !!
Topic: First effort
Replies: 8
Views: 1299

First effort

I am new t this. I bought a scope and a camera and yesterday was the first day without cluds eveythig went together. So this is my first Ha photo attempt. Compared to others I have seen here I thought it looked a little over sharpened. Dimensionally it looks less like a sphere and more like a coin. ...
by rbenton
Thu May 12, 2016 4:15 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: trouble installing DSII module on LS100
Replies: 3
Views: 2955

Re: trouble installing DSII module on LS100

I spoke to the good people at Lunt and they are sending a replacement part that will fix my problem. Their customer service is first rate. I suppose many of you already know that, but they deserve the shout-out nevertheless. Thanks Gus.

Randall Benton
by rbenton
Wed May 11, 2016 1:09 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: trouble installing DSII module on LS100
Replies: 3
Views: 2955

trouble installing DSII module on LS100

I have a Lunt LS100 and I am trying to install their DSII module. Looks like a straightforward project but the DSII doesn't seem to slip far enough into the OTA for the provided thumbscrews to seat securely. I certainly don't want to force anything. Can anyone advise me on this?

Randall Benton
by rbenton
Fri May 06, 2016 5:20 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Laptop advice
Replies: 7
Views: 4683

Laptop advice

I am gearing up to look at the sun in Ha for the first time. I have the scope, and a 6mp PGR Grasshopper3. I am a Mac user, but sadly the software support for this hobby on a Mac is pitiful. So I need to get a Windows laptop to run the camera and process the files. I won't use the new machine for an...
by rbenton
Tue Apr 19, 2016 10:50 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: More rudimentary questions
Replies: 1
Views: 2654

More rudimentary questions

Everyone has been so helpful but it seems the more I learn, the more I need to know. Ya know? Anyway I have some basic questions I hope someone can help me with as I prepare to dive in head-first. Regarding the myriad choices of cameras, is there an advantage to CCD over CMOS sensors (or vice versa)...
by rbenton
Tue Apr 12, 2016 1:12 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Camera advice for a newbie
Replies: 7
Views: 4430

Camera advice for a newbie

I am a photojournalist in Northern California. I am starting to plan for next year’s total solar eclipse, and I want to photograph the partial phases in H-alpha. I have done as much “Google” homework as I can and I think I will be buying a Lunt H-a scope (probably the 100). I am coming at this proje...