Search found 513 matches

by JimLafferty
Mon Dec 16, 2013 5:19 pm
Forum: This is SolarChat !!
Topic: Dec 15 2013 solar Ha
Replies: 7
Views: 210

Dec 15 2013 solar Ha

Hi Folks- Havent posted much lately--either weather or the holidays kept getting in the way. Here are a few quick shots from yesterday with the Lunt 100 and Coronado 90. DMK 41 camera--thanks for looking and Happy Holidays! Sample below: http://tinyurl.com/4xg8tmr Jim http://scopetrader.com/jimlaffe...
by JimLafferty
Thu Nov 21, 2013 9:28 pm
Forum: This is SolarChat !!
Topic: Nov 17 solar activity
Replies: 8
Views: 103

Re: Nov 17 solar activity

Thanks all--as I mentioned seeing was really "iffy".
Brian and Alexandra--yeah--you can see a bit of that feature in the umbra in Dereks inverse shot in todays photo of the day. Not sure if it looks like Jesus, though lol.

Jim
by JimLafferty
Wed Nov 20, 2013 10:25 pm
Forum: This is SolarChat !!
Topic: Nov 17 solar activity
Replies: 8
Views: 103

Nov 17 solar activity

Hi Folks- Work is hectic but I finally managed to squeeze a few images in on Nov 17. These are with a Pt Grey Chamaeleon camera and a variety of scopes and configurations. Lunt 100/DS/Luntanado/ES127ED/ES80ED. and a Lunt solar wedge. Seeing was lousy, but the sun was too active to pass up. http://sc...
by JimLafferty
Thu Oct 31, 2013 4:42 pm
Forum: This is SolarChat !!
Topic: Prom Shot Oct 30 2013
Replies: 10
Views: 237

Re: Prom Shot Oct 30 2013

Thanks folks---
Stets, Im planning a trip out to Bryce again next year (maybe two). Enjoy your eclipse, Im sure Ill be working :(

Jim
by JimLafferty
Thu Oct 31, 2013 3:18 am
Forum: This is SolarChat !!
Topic: Prom Shot Oct 30 2013
Replies: 10
Views: 237

Prom Shot Oct 30 2013

Folks
Here is a prom shot from this morning with my Coronado 90/BF30 and DMK 41 camera

Jim



Attached files
by JimLafferty
Tue Oct 29, 2013 8:47 pm
Forum: This is SolarChat !!
Topic: Departing Activity
Replies: 7
Views: 157

Re: Departing Activity

Beautifully Processed Ralph--about as good as it gets!

Jim
by JimLafferty
Mon Oct 21, 2013 9:54 pm
Forum: This is SolarChat !!
Topic: Good seeing conditions
Replies: 12
Views: 306

Re: Good seeing conditions

Simply awesome, Randy!
by JimLafferty
Mon Oct 21, 2013 3:03 pm
Forum: This is SolarChat !!
Topic: Solar Ha with the ASI120MM camera
Replies: 7
Views: 157

Re: Solar Ha with the ASI120MM camera

Thanks folks---

Forgot to mention this is not a mosaic, it is one stacked avi--I used a reducer to get the full disk.
Solar--Im pretty sure yours is a mosaic, correct?

Thanks
Jim
by JimLafferty
Mon Oct 21, 2013 3:42 am
Forum: This is SolarChat !!
Topic: Solar Ha with the ASI120MM camera
Replies: 7
Views: 157

Solar Ha with the ASI120MM camera

Hi Folks I Had another outing with ZWO's ASI120MM camera on saturday. This camera will normally be found in the toolbox of our planetary imaging brethren, but it is quite capable of delivering nice low noise solar Ha images, despite its CMOS chip. These images were captured with my Lunt 100/DSII on ...
by JimLafferty
Tue Oct 15, 2013 9:15 pm
Forum: This is SolarChat !!
Topic: Oct 12, 2013 solar action
Replies: 11
Views: 178

Re: Oct 12, 2013 solar action

To quote Walter, "Thanks all, for the flowers"! :)

Jim
by JimLafferty
Sun Oct 13, 2013 8:00 pm
Forum: This is SolarChat !!
Topic: Oct 12, 2013 solar action
Replies: 11
Views: 178

Oct 12, 2013 solar action

Hi Folks Here are yesterdays shots with a Lunt 100, Lunt 100/DSII double stack, Luntanado 100, and a few white light shots with a Lunt wedge and 5" ES127 Triplet. There was some beautiful prominence action on the limb in addition to the active regions. Below is the large prom that was on the NW limb...
by JimLafferty
Sat Sep 21, 2013 9:33 pm
Forum: This is SolarChat !!
Topic: A few Full Disks from Sept 18, 2013, with Luntanado 100
Replies: 5
Views: 137

Re: A few Full Disks from Sept 18, 2013, with Luntanado 100

Thanks! I use 3 cameras. The ZWO, the Grasshopper 3, and the DMK 41.
Jim
by JimLafferty
Sat Sep 21, 2013 6:43 pm
Forum: This is SolarChat !!
Topic: A few Full Disks from Sept 18, 2013, with Luntanado 100
Replies: 5
Views: 137

A few Full Disks from Sept 18, 2013, with Luntanado 100

Hi Folks- Here are a few full disks and proms from Sept 18, 2013. Imaged with the Luntanado 100 and DMK 41 camera. Other than the nice prom on the NE limb, the sun seemed pretty quiet at first glance when single stacked, but the Luntanado brought out a bit more to see. (Sample below--more at: http:/...
by JimLafferty
Sun Sep 15, 2013 11:07 am
Forum: This is SolarChat !!
Topic: Elimination of Newton's Rings on the ZWO ASI120mm camera
Replies: 10
Views: 430

Re: Elimination of Newton's Rings on the ZWO ASI120mm camera

yes, a flat field will work, but Ive never liked bothering with them--just a personal preference
by JimLafferty
Sat Sep 14, 2013 9:34 pm
Forum: This is SolarChat !!
Topic: Elimination of Newton's Rings on the ZWO ASI120mm camera
Replies: 10
Views: 430

Elimination of Newton's Rings on the ZWO ASI120mm camera

Hi Folks, One of the pesky issues with using this camera for Ha imaging has been the Newton's Rings it produces, especially with Barlows and Powermates. I recently purchased a T2 tilt adjuster from OPT and tried it out for the first time today--Details and images below--looks like this adaptor is a ...
by JimLafferty
Mon Sep 02, 2013 11:13 pm
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Which are the current best cameras for solar imaging?
Replies: 50
Views: 4239

Re: Which are the current best cameras for solar imaging?

Well, its clear we are all approaching this differently, lol. Some basics are in common, but so much has to do with the scopes we are using, where we are in our capture/processing skills, and not the least of which is what we like to see in the finished product. The solar imager is still part "Newsc...
by JimLafferty
Sun Sep 01, 2013 10:31 pm
Forum: This is SolarChat !!
Topic: First light with a ZWO ASI 120mm
Replies: 10
Views: 460

First light with a ZWO ASI 120mm

Hi Folks-- With the Grasshopper 3 in the shop for repair I picked up this little camera to play with in the meantime---I was curious about it after reading Damien Peach's review in the UK's "Astronomy Now" magazine. Evidently this camera is becoming fairly popular with the planetary imagers. Its rel...
by JimLafferty
Sun Sep 01, 2013 4:07 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Which are the current best cameras for solar imaging?
Replies: 50
Views: 4239

Re: Which are the current best cameras for solar imaging?

While my brand new Grasshopper 3 is in the shop, Im going to test the ZWO ASI 120MM mono camera. I read Damien Peach's review of the camera in Astronomy Now magazine this month and thought I'd take a shot. He was pretty impressed with its low noise and fps. It's a CMOS chip with pretty small pixels ...
by JimLafferty
Fri Aug 16, 2013 5:00 pm
Forum: Solar Reference Library
Topic: Hardware:Thoughts on the Grasshopper 3
Replies: 51
Views: 11830

Re: Thoughts on the Grasshopper 3

After last night's post above I tried the camera again and now it looks like some kind of hardware failure with the camera--First the right half of the chip got real noisy, then a few minutes later it blacked out. A few minutes after that the whole chip went dark--showing no sensitivity to light at ...
by JimLafferty
Fri Aug 16, 2013 12:19 pm
Forum: Solar Reference Library
Topic: Hardware:Thoughts on the Grasshopper 3
Replies: 51
Views: 11830

Re: Thoughts on the Grasshopper 3

I have the USB3 version, which I still suspect is the issue, firewire probably works great.....

Jim
by JimLafferty
Fri Aug 16, 2013 3:52 am
Forum: Solar Reference Library
Topic: Hardware:Thoughts on the Grasshopper 3
Replies: 51
Views: 11830

Re: Thoughts on the Grasshopper 3

After 4 VERY frustrating days trying to deal with the finicky Grasshopper 3 I'll be calling Pt Grey tomorrow again. Out of a total of about 7 hours of imaging time, the camera connected and worked about 20 minutes. Sorry, but if I have to buy another new machine just so it has the right motherboard ...
by JimLafferty
Sat Aug 10, 2013 1:48 pm
Forum: Solar Reference Library
Topic: Hardware:Thoughts on the Grasshopper 3
Replies: 51
Views: 11830

Re: Thoughts on the Grasshopper 3

Yeah Stephen, I agree--I think so much depends on "what" you want to capture and how much (and in what way) you want to process. I noticed that the images that are captured with proms and disk together make for a bit of a washed out disk, but "inverted" they are wonderful to work with. Everyone have...
by JimLafferty
Sat Aug 10, 2013 12:10 am
Forum: Solar Reference Library
Topic: Hardware:Thoughts on the Grasshopper 3
Replies: 51
Views: 11830

Re: Thoughts on the Grasshopper 3

I think really the best way to compare 16 bit vs 8 bit is to try to capture the full disk and the proms together in both images. The original point is that when imaging them both together you are having to adjust your capture settings with gamma pushed up pretty high--You will maximize your prom det...