Superb set of pictures, Stu.
Petr
Search found 2221 matches
- Wed Apr 17, 2024 6:53 am
- Forum: This is SolarChat !!
- Topic: Ha Solar images 16th April 2024
- Replies: 17
- Views: 429
- Mon Apr 15, 2024 5:14 am
- Forum: This is SolarChat !!
- Topic: Sun April 14, 2024
- Replies: 15
- Views: 314
Re: Sun April 14, 2024
Superb FD pictures.
Petr
Petr
- Sun Apr 14, 2024 5:51 pm
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 14th 2024
- Replies: 6
- Views: 206
Re: Sun FD in H-Alpha, CaK and Continuum April 14th 2024
Superb FD, Arne.
Petr
Petr
- Sun Apr 14, 2024 4:39 pm
- Forum: This is SolarChat !!
- Topic: H-Alpha closeup from today
- Replies: 32
- Views: 526
Re: H-Alpha closeup from today
Superb.
Petr
Petr
- Sun Apr 14, 2024 7:28 am
- Forum: This is SolarChat !!
- Topic: And the rest of the story 4/13/2024
- Replies: 18
- Views: 296
Re: And the rest of the story 4/13/2024
Superb FD and animation. Excelent work.
Petr
Petr
- Sun Apr 14, 2024 7:26 am
- Forum: This is SolarChat !!
- Topic: Animation SW Prominence testing replaced Quark
- Replies: 8
- Views: 258
Re: Animation SW Prominence testing replaced Quark
Superb animation.
Petr
Petr
- Sun Apr 14, 2024 7:25 am
- Forum: This is SolarChat !!
- Topic: CaK Full Disk 13th April
- Replies: 10
- Views: 194
Re: CaK Full Disk 13th April
Superb FD, Mark. CaK is my far future.
Petr
Petr
- Sat Apr 13, 2024 7:35 pm
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 12th 2024
- Replies: 8
- Views: 187
Re: Sun FD in H-Alpha, CaK and Continuum April 12th 2024
Superb set of FD photos, Arne.
Petr
Petr
- Sat Apr 13, 2024 7:34 pm
- Forum: This is SolarChat !!
- Topic: Today's SUN (20240413) | NP101, LUNT152, FS60C (Sol'Ex)
- Replies: 11
- Views: 224
Re: Today's SUN (20240413) | NP101, LUNT152, FS60C (Sol'Ex)
Superb collection of solar photos, Pedro,
Petr
Petr
- Sat Apr 13, 2024 7:32 pm
- Forum: This is SolarChat !!
- Topic: Full Disk 13/4/24 and 3634/3633
- Replies: 9
- Views: 177
Re: Full Disk 13/4/24 and 3634/3633
Superb photos.
Petr
Petr
- Sat Apr 13, 2024 7:31 pm
- Forum: This is SolarChat !!
- Topic: Test AR208/F8.5 -> F34 with IMX429 x 0.75 -13.04.
- Replies: 13
- Views: 287
Re: Test AR208/F8.5 -> F34 with IMX429 x 0.75 -13.04.
Lovely images, Petr. That scope amazes and terrifies me at the same time. ;) Stu. It's a monster, but it works well. Focusing by moving the mirrors has probably never been used on a refractor in front of me before, at least I have not come across a similar concept anywhere. The shortening is signif...
- Sat Apr 13, 2024 12:52 pm
- Forum: This is SolarChat !!
- Topic: Full Disc 12-04-2024
- Replies: 12
- Views: 231
Re: Full Disc 12-04-2024
Superb FD photos.
Petr
Petr
- Sat Apr 13, 2024 12:51 pm
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 11th 2024
- Replies: 7
- Views: 180
Re: Sun FD in H-Alpha, CaK and Continuum April 11th 2024
Superb FD pictures, Arne.
Petr
Petr
- Sat Apr 13, 2024 11:47 am
- Forum: This is SolarChat !!
- Topic: Test AR208/F8.5 -> F34 with IMX429 x 0.75 -13.04.
- Replies: 13
- Views: 287
Test AR208/F8.5 -> F34 with IMX429 x 0.75 -13.04.
This monster hadn't been out for a long time, so I took her out in the sun. There was no danger of getting burned because the sun was 90% of the time behind clouds and in a haze. It was a struggle to produce 4 photos with dual setup. On the one hand TV4x and on the other hand TZ4. The haze made the ...
- Sat Apr 13, 2024 6:08 am
- Forum: Solar Scope Modifications
- Topic: Progress on Quark power plug issues.
- Replies: 5
- Views: 509
Re: Progress on Quark power plug issues.
It's a good idea to 3D print a bracket that slides onto the Quark and has a tight opening for the connector body. This prevents mechanical stress on the connector and eliminates problems.
- Sat Apr 13, 2024 6:01 am
- Forum: Solar Scope Modifications
- Topic: Can you stack two tele-centric barlows?
- Replies: 25
- Views: 690
Re: Can you stack two tele-centric barlows?
If you do a simulation in Optgeo, it will become clear to you that it is unusable for solar purposes. A telecentric bundle emerges from the first element, not a convergent one as expected by the second element. In principle, it can no longer function properly. If the first element is Barlow, the out...
- Fri Apr 12, 2024 4:11 pm
- Forum: This is SolarChat !!
- Topic: Solar active regions 12.04. AR150/F6
- Replies: 11
- Views: 265
- Fri Apr 12, 2024 2:38 pm
- Forum: This is SolarChat !!
- Topic: Solar active regions 12.04. AR150/F6
- Replies: 11
- Views: 265
Solar active regions 12.04. AR150/F6
I know it's a hundred times different chicken, but today's milk broth brought a few photos that I'd like to share.
- Fri Apr 12, 2024 12:26 pm
- Forum: This is SolarChat !!
- Topic: Friday April 12th Ha Session
- Replies: 8
- Views: 137
Re: Friday April 12th Ha Session
Superb session.
Petr
Petr
- Fri Apr 12, 2024 5:37 am
- Forum: This is SolarChat !!
- Topic: Sun FD in H-Alpha, CaK and Continuum April 10th 2024
- Replies: 11
- Views: 229
Re: Sun FD in H-Alpha, CaK and Continuum April 10th 2024
Superb FD photos, Arne.
Petr
Petr
- Fri Apr 12, 2024 5:36 am
- Forum: This is SolarChat !!
- Topic: April 10th Ha Session
- Replies: 11
- Views: 217
Re: April 10th Ha Session
Superb FD and details.
Petr
Petr
- Thu Apr 11, 2024 7:45 pm
- Forum: This is SolarChat !!
- Topic: Full Disc 11-04-2024
- Replies: 8
- Views: 205
Re: Full Disc 11-04-2024
Very nice FD pictures.
Petr
Petr
- Thu Apr 11, 2024 7:44 pm
- Forum: This is SolarChat !!
- Topic: Full Disc with the Lunt 130MT
- Replies: 9
- Views: 211
Re: Full Disc with the Lunt 130MT
Supebr FD.
Petr
Petr
- Thu Apr 11, 2024 7:42 pm
- Forum: This is SolarChat !!
- Topic: ISTAR 228/F9 in midday sun 11.4.
- Replies: 14
- Views: 399
- Thu Apr 11, 2024 4:04 pm
- Forum: This is SolarChat !!
- Topic: ISTAR 228/F9 in midday sun 11.4.
- Replies: 14
- Views: 399
Re: ISTAR 228/F9 in midday sun 11.4.
Thank you all for the positive feedback.
Just one technical note. If you put a divergent lens in front of the TZ3, you need to adjust the focal plane distance of the TZ3. It will no longer be 250mm, but will be shortened to approx. 200mm. It needs to be tested until the contrast is the best.
Just one technical note. If you put a divergent lens in front of the TZ3, you need to adjust the focal plane distance of the TZ3. It will no longer be 250mm, but will be shortened to approx. 200mm. It needs to be tested until the contrast is the best.
- Thu Apr 11, 2024 3:12 pm
- Forum: This is SolarChat !!
- Topic: ISTAR 228/F9 in midday sun 11.4.
- Replies: 14
- Views: 399
ISTAR 228/F9 in midday sun 11.4.
It cleared up at noon, so I tried another telecenter option. 1.25" Barlow 1.5x in combination with TZ3x. IMX429 camera with 0.75x reducer.
Seeing was lousy in the midday sun, but I expected that. The combination proved well usable on ISTAR.
Seeing was lousy in the midday sun, but I expected that. The combination proved well usable on ISTAR.
- Thu Apr 11, 2024 9:23 am
- Forum: This is SolarChat !!
- Topic: Full Disc 10-04-2024
- Replies: 8
- Views: 233
Re: Full Disc 10-04-2024
Superb detailed FD.
Petr
Petr
- Wed Apr 10, 2024 5:51 pm
- Forum: This is SolarChat !!
- Topic: Games with telecenters and cameras AR150/F6 - 8.4.
- Replies: 18
- Views: 422
Re: Games with telecenters and cameras AR150/F6 - 8.4.
Cannot combine two telecentric elements.....Why? My methoud TV4x+TV2x works! Yes need less tilt but works! I have 8x on my TS 152/F6 and f48 like you but your TV4x+ES2 shorts and all! On site Televue write about Paracorr 2 and TV2x that methoud works because Paracorr 2 telecentric too. It kind of w...
- Wed Apr 10, 2024 3:10 pm
- Forum: This is SolarChat !!
- Topic: Games with telecenters and cameras AR150/F6 - 8.4.
- Replies: 18
- Views: 422
Re: Games with telecenters and cameras AR150/F6 - 8.4.
Nice result I tested a few days ago TV4X+2X powermate, interesting results. Tell me about TZ3 and TZ4 you put right after TZ3 or TZ4 barlow 1.5x? You tested only f24 with TZ4x or Powermate 4x? All the difference on f48 is only in the contrast and that's it? Cannot combine two telecentric elements. ...
- Wed Apr 10, 2024 5:10 am
- Forum: This is SolarChat !!
- Topic: Sun in Ha and WL 9th April 2024
- Replies: 8
- Views: 207
Re: Sun in Ha and WL 9th April 2024
Superb result.
Petr
Petr
- Wed Apr 10, 2024 5:09 am
- Forum: SPoD Archive
- Topic: lucky shot
- Replies: 9
- Views: 154
Re: lucky shot
Superb.
Petr
Petr
- Wed Apr 10, 2024 5:09 am
- Forum: Total Solar Eclipse April 8 2024
- Topic: lucky shot
- Replies: 11
- Views: 251
Re: lucky shot
Superb.
Petr
Petr
- Wed Apr 10, 2024 5:07 am
- Forum: This is SolarChat !!
- Topic: Full Disc 09-04-2024
- Replies: 11
- Views: 311
Re: Full Disc 09-04-2024
Superb FD pictures.
Petr
Petr
- Wed Apr 10, 2024 5:03 am
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
- Wed Apr 10, 2024 5:01 am
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
Re: TS150/F6->F36 with IMX429 07.04.
Hi I have a 2" 2x ES and 1.25" 2x ES, with two doublets in each. The fronts are black but have no lettering. The 2x and 3x black rings you show look like they come off a normal barlow. In any case you could not remove the front doublet from a telecentric barlow and just screw it on to a c...
- Tue Apr 09, 2024 7:55 pm
- Forum: This is SolarChat !!
- Topic: Games with telecenters and cameras AR150/F6 - 8.4.
- Replies: 18
- Views: 422
Re: Games with telecenters and cameras AR150/F6 - 8.4.
The deflection is not great. I was just trying different variants with regard to combinations of Barlow and telecentric optics. Barlow has no negative impact on image quality with either the TV4x or the TZ3 or TZ4. This is a very positive finding when using telescopes with a shorter focal length.
- Tue Apr 09, 2024 5:32 pm
- Forum: Total Solar Eclipse April 8 2024
- Topic: jet transit during eclipse 8/4/24
- Replies: 12
- Views: 252
Re: jet transit during eclipse 8/4/24
Superb.
Petr
Petr
- Tue Apr 09, 2024 5:28 pm
- Forum: This is SolarChat !!
- Topic: Games with telecenters and cameras AR150/F6 - 8.4.
- Replies: 18
- Views: 422
Games with telecenters and cameras AR150/F6 - 8.4.
The milky days continue, so I've been testing different combinations of telecentres and cameras. Before TZ3 and TZ4 I put 1.25" Barlow 1.5x and on TV4x 2" Barlow 2x. I got as far as F48. You could see it on the contrast, but the exposure time reached 20-25 ms. I reduced the smaller chips t...
- Tue Apr 09, 2024 12:44 pm
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
Re: TS150/F6->F36 with IMX429 07.04.
No filters, just a 25mm aperture between etalonss.
- Tue Apr 09, 2024 9:35 am
- Forum: This is SolarChat !!
- Topic: H-alpha ds: on band?
- Replies: 16
- Views: 366
Re: H-alpha ds: on band?
Superb.
Petr
Petr
- Tue Apr 09, 2024 9:32 am
- Forum: This is SolarChat !!
- Topic: SUN (20240408) | Apollo M Max Pro First Light
- Replies: 10
- Views: 260
Re: SUN (20240408) | Apollo M Max Pro First Light
Superb results, Pedro.
Petr
Petr
- Tue Apr 09, 2024 9:30 am
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
Re: TS150/F6->F36 with IMX429 07.04.
When I used the LS40 as a front, uniformity was good with both. In DSII with Quark, the diameter is limited by BF to 20mm. Glare issues were minimal. It is important to blacken everything. I don't know the bandwidth. I guess 0.8-1A. In tandem, the bandwidth is about 0.5-0.6A, but with F48 and more. ...
- Tue Apr 09, 2024 5:39 am
- Forum: Total Solar Eclipse April 8 2024
- Topic: Eclipse from NW Arizona
- Replies: 7
- Views: 185
Re: Eclipse from NW Arizona
Superb set.
Petr
Petr
- Mon Apr 08, 2024 8:37 pm
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
Re: TS150/F6->F36 with IMX429 07.04.
Thanks, i will try and see how far i can push contrast of a single ls40 + reduction afterwards. Im still dreaming of a working 2x ls40 ds. 2 x LS40 only work for me on Lichtenknecker 150/F24 on F48 with double BF 20mm. Lots of light and enough contrast. It doesn't work for me with any other telesco...
- Mon Apr 08, 2024 6:30 pm
- Forum: This is SolarChat !!
- Topic: TS150/F6->F36 with IMX429 07.04.
- Replies: 29
- Views: 604
Re: TS150/F6->F36 with IMX429 07.04.
Good images and interesting post Petr. So the lower part is a 2 lens element, basically like a barlow right? I wonder if one can combine a classic barlow element with a telecentric, is it the same as a "pure" 6x telecentric with same lower field angle on the etalon and all? Would be nice ...
- Mon Apr 08, 2024 10:35 am
- Forum: This is SolarChat !!
- Topic: 08 April 2024
- Replies: 8
- Views: 234
Re: 08 April 2024
Superb details.
Petr
Petr
- Mon Apr 08, 2024 7:06 am
- Forum: This is SolarChat !!
- Topic: SUNday 04-07 Images Eclipse -1
- Replies: 10
- Views: 309
Re: SUNday 04-07 Images Eclipse -1
Nice FD and details.
Petr
Petr
- Mon Apr 08, 2024 7:05 am
- Forum: This is SolarChat !!
- Topic: Disks and animations from 4/6 and 4/7/2024
- Replies: 10
- Views: 254
Re: Disks and animations from 4/6 and 4/7/2024
Superb pictures and animations , Warrene and good luck with the eclipse!
Petr
Petr
- Mon Apr 08, 2024 5:13 am
- Forum: This is SolarChat !!
- Topic: Full Disc 07-04-2024
- Replies: 10
- Views: 241
Re: Full Disc 07-04-2024
Very nice FD pictures.
Petr
Petr
- Mon Apr 08, 2024 5:12 am
- Forum: This is SolarChat !!
- Topic: CaK Full Disk 7th April
- Replies: 12
- Views: 309
Re: CaK Full Disk 7th April
Superb result, Mark.
Petr
Petr