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Astrophotography Planet Visual Video Astronomy
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#101 JamesMStephens

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Posted 27 April 2023 - 07:13 AM

Very nice image. I was also fooling around on a ‘first night out’ but took only one shot before clouds moved in. iPhone 12 Pro on my 3.5 using the new 20mm Brandon.

 

Ron

Nice, Ron, was the iPhone coupled to the e/p with an adapter, or is this hand-held?

 

Jim


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#102 RMay

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Posted 27 April 2023 - 09:22 AM

Nice, Ron, was the iPhone coupled to the e/p with an adapter, or is this hand-held?

 

Jim

Hi Jim, thanks for the kind word; I used the adapter… due to eye relief issues, the 20mm is not as user friendly as the 16mm, but I’m trying to make it work.

Ron

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#103 Yellowstone

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Posted 30 April 2023 - 09:17 PM

 Someone once said, "Always make sure your first product is your worst."

 

With that in mind, I took the new-to-me Questar out for a first look at the moon. Wow, so incredibly sharp.

 

I didn't have my iPhone mount, so with a Vulcan death grip I held the lens to the eyepiece trying to hold still while also pressing the button. If this is the worst I get, then I'm excited about what lies ahead.

 

52859638287_5940515b4f_k.jpg


Edited by Yellowstone, 01 May 2023 - 07:05 AM.

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#104 gstrumol

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Posted 01 May 2023 - 02:06 PM

Nice!

 

If you have to do a handheld shot over the EP try this: set the delay to 5 or 10 seconds first. Then press the button and use the time to place the smartphone properly over the EP and hold still. This will prevent you from moving the camera when you try to hit the button.

 

That was the whole point of adding a delay to DSLRs in the first place. To allow you to move into position with others for a group shot. wink.gif The same principle holds here.

 

I used this technique to take this shot of the moon at 125x with my iPhone X over the EP:

 

lockScreen.jpg

 

Of course, getting a smartphone holder is the way to go if you want to use your phone's camera. I'd suggest you get ProCamera for it as it's far superior to the native camera app.


Edited by gstrumol, 01 May 2023 - 09:41 PM.

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#105 Psereiko

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Posted 14 May 2023 - 01:49 PM

2 image mosaic of moon early may 2023.  Q3.5 ASI585 Astrotech f/6.3 field flattener/reducer

 

Moon Mosaic wMaskMay23

 


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#106 SkipW

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Posted 06 June 2023 - 05:05 PM

Sun 20230606 18:03Z (1:03 PM CDT) mid-capture time

 

18_01_49_l4_ap6_Resample20_conv_q09.jpg

 

3.5" Questar Duplex

  • Full-aperture solar filter
  • ZWO ASI432MM camera (borrowed)
  • Prime focus: swivel coupling (no extension tubes), P to T adapter, camera
  • PG III tracking (why does it not offer solar tracking rate?)

Computers

  • Capture: Asus E210M 
  • Processing: Dell XPS 15 9570 laptop

SharpCap

  • 1608x1104 pixel, 16 bit (14 bit A/D), image size
  • 0.08 ms exposure, gain = 63 (Auto)
  • 2777 frames captured, 127 second duration (21.83 fps) = 9 GB file!

AutoStakkert! 3.0

  • 25% of frames stacked (default)
  • 2X resampling
  • Mostly default parameters (I barely know how to use AS)

 

Other notes

 

The image is gorgeous when viewed full scale from the original TIFF. This is converted to JPEG with quality setting 9 (of 12) in Photoshop to reduce the size enough to upload here, but otherwise is unaltered. It's still pretty good.

 

There are a few dust motes or schmutz of some kind on the sensor's window smeared by the stacking and more evident as dark donuts on individual frames. I shoulda taken some flats - live and learn. This kind of artifact was much worse when using the off-axis solar filter; it looks like the full-aperture filter may be worth the cost. It's easier to to get sharp focus at f/15 instead of f/30+, too.

 

That little Asus computer was a bargain when I bought it new for $100 at Best Buy last December for recording occultations. It's been a great little computer for that, very light and compact. Its USB 3 system and (small) internal SSD seems quite capable so it records SD video just fine without dropping frames, but it's kind of lacking in raw processing power and has limited memory and internal disk storage. The screen is also a bit hard to see in full noontime sunlight, but can still be used. The Dell is a hot rod; it gets used for processing data collected on it and the Asus.

 

I'm impressed with the overall capability of this very compact and easy to transport set of equipment.


Edited by SkipW, 06 June 2023 - 05:12 PM.

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#107 Moon-Watcher

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Posted 08 June 2023 - 12:58 AM

A quick tootle around with the Q and a ZWO ASI294 MC had me looking at M3 this evening. Just ignored the wildfire smoke and haze.
This was live stacked with the ASIAIR Pro - 30 minutes of 10 second exposures with ‘medium’ gain setting and temperature set at -15 centigrade. No flats or darks. Just twisted dials on the iPhone to increase blackpoint, reduce vegnetting and sharpen a bit.

Attached Thumbnails

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Edited by Moon-Watcher, 08 June 2023 - 01:01 AM.

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#108 Moon-Watcher

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Posted 08 June 2023 - 12:59 AM

And the setup….

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#109 Gregory Gross

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Posted 08 June 2023 - 01:32 PM

Very nice!

 

Just ignored the wildfire smoke and haze...

Welcome to the wildfire smoke club. If you're so inclined, you can make lemonade out of lemons by imaging a beautifully rust-colored moon through all that murk.


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#110 Moon-Watcher

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Posted 14 June 2023 - 12:29 PM

Learning more about how to use the ASIAIR Pro, and associated software.  Incorporated darks, flats and bias frames.

Attached Thumbnails

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Edited by Moon-Watcher, 14 June 2023 - 01:51 PM.

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#111 TerryWood

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Posted 19 June 2023 - 07:33 AM

Here are a couple from last evening and early this morning of Venus and Saturn. 

 

I mounted my Questar 3.5" and ZWO678MC camera on a Takahashi Space Boy mount and manually guided. 

 

The seeing was not the best, especially for Venus, but I just took a large amount of frames to help compensate somewhat. 

 

Processed these with ASI Studio and Lightroom. I'll get a better shot of the setup when there is not so much glare in here. 

 

V/R

 

Terry

 

 

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  • Venus Q  zwo678mc png.png
  • Saturn Q  zwo678mc png.png

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#112 norcalryder

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Posted 19 June 2023 - 09:55 AM

Beautiful!  So are the images :)


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#113 TerryWood

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Posted 19 June 2023 - 01:24 PM

Thanks, I really appreciate it! The dovetail is a bit long, but it actually acts as a nice handle. And it's silver, which is a nice match with the silver rings and finder. It's not quite as light as when the OTA is in it's fork mount (which I prefer), but I can use this setup on a beefier mount with an autoguider if I'm inclined to do it. Just need all of this smoke to get to get out of here first. Still, in the interim, the Q on the Space Boy mount is ready as a "one trip out the door" setup as well. Plus it's fun to compare different configurations.

V/R

Terry
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#114 Uli

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Posted 19 June 2023 - 01:25 PM

Can you please tell me what kind of clip you used to fasten the Q3.5? I have something similar in mind.

 

greeting 

 

Uli


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#115 TerryWood

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Posted 20 June 2023 - 11:57 AM

Can you please tell me what kind of clip you used to fasten the Q3.5? I have something similar in mind.

 

greeting 

 

Uli

Here is a link to the tube rings (100mm). They fit, but it's definitely snug. This Questar is not a duplex, so I temporarily removed the OTA from the base, added tube rings, a duplex dewshield, plus a metal screw-on dewshield and cap. The finder scope is a QHYCCD mini-guidescope with a 32mm Brandon attached. I plan on getting a proper eyepiece-to-guidescope adapter made at the local metal shop if they can do it. Should be easy enough. I also have a Questar diagonal attached to the axial port.

 

Hope this helps. Here's a few more pics (in the next posts).

 

Rings link: https://www.amazon.c...,aps,121&sr=8-1

 

V/R

 

Terry


Edited by TerryWood, 20 June 2023 - 12:07 PM.

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#116 TerryWood

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Posted 20 June 2023 - 12:02 PM

Here are the pics.

 

I'll probably put an 8mm on the finderscope. Makes more sense plus it's a whole lot shorter 

 

V/R

 

Terry

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Edited by TerryWood, 20 June 2023 - 12:26 PM.

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#117 TerryWood

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Posted 20 June 2023 - 12:04 PM

And last one.

 

V/R

 

Terry

 

My pictures resolution keeps downgrading when I post. Sorry about that!

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Edited by TerryWood, 20 June 2023 - 12:38 PM.

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#118 RMay

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Posted 21 June 2023 - 10:51 AM

Taken last night but clearly not a feature I recognize. Does anyone care to venture a guess as to what this might be? Alien invasion theories welcome…

 

Ron

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#119 davidmcgo

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Posted 21 June 2023 - 06:50 PM

Just the bumpy edge of Mare Crisium catching Sunlight due the peaks being higher elevation than the floor.  Had a really nice view in my Celestron C11 last night.

 

Dave


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#120 gstrumol

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Posted 22 June 2023 - 10:50 PM

yeah, it's real. Saw it too with my AT80EDL under below average seeing conditions and took this image:

 

last night.jpg

(click to enlarge)

 

edited: sorry, that was taken with the AT80EDL


Edited by gstrumol, 23 June 2023 - 06:09 AM.

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#121 RMay

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Posted 23 June 2023 - 12:55 AM

Taken last night but clearly not a feature I recognize. Does anyone care to venture a guess as to what this might be? Alien invasion theories welcome…

Ron


Noted and thanks; edited to note: image taken by close coupling my iPhone 12 Pro to the 16mm eyepiece of my Questar 3.5 at 87.5X magnification, unguided.

Ron
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#122 RMay

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Posted 15 July 2023 - 10:16 AM

Here are two from last night. Both taken under Bortle 3 skies about an hour from my home; both with iPhone 12 Pro close-coupled to the 16mm eyepiece of my Questar Seven, approx 15 second exposures. Some internal editing to enhance images. 

Ron

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  • 3E5CC708-B4B2-42DE-9796-1A44EA358B20.jpeg

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#123 RMay

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Posted 18 August 2023 - 08:59 AM

 Venus re-emerges as our morning ‘star.’ Almost missed it… not very bright and it was past the treetops when I finally did see it only at full magnification (invisible in Finder mode/naked eye).

 

Ron

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#124 Erik Bakker

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Posted 19 August 2023 - 06:59 PM

Ron, those images are just stunning. Hand held iPhone to the 16mm eyepiece in your Q7? Awesome!

 

As are the others.



#125 RMay

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Posted 19 August 2023 - 07:50 PM

Hi Erik, thank you for the kind words; they’re greatly appreciated.

The DSOs were captured using my Seven and an inexpensive iPhone mount; the image of Venus was captured in the same way using my 3.5.

Kindest regards,

Ron


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