Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 29 Nov 2017 (Wednesday) 21:20
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Pollux and company

 
Pagman
I just hold the thing :-)
Avatar
8,033 posts
Gallery: 1556 photos
Likes: 5539
Joined Dec 2011
     
Nov 29, 2017 21:20 |  #1

Not the best and just a single Iso 6400 exposure just messing while I was waiting for Orion to come up.

I realised something though not sure it it would make a difference? I had spot metering enabled as this is what I use by dfault.

P.


HOSTED PHOTO
please log in to view hosted photos in full size.


Some stuff.

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
MalVeauX
"Looks rough and well used"
Avatar
12,777 posts
Gallery: 1161 photos
Best ofs: 3
Likes: 8325
Joined Feb 2013
Location: Florida
     
Nov 29, 2017 21:23 |  #2

Metering does nothing when you're using set values in manual. It merely tells you what your relative exposure is to the metering process if you were trying to gauge exposure. But it doesn't work for this in any meaningful way. When it comes to astro, there is no metering method beyond the histogram.

Very best,


My Flickr (external link) :: My Astrobin (external link)

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
8,033 posts
Gallery: 1556 photos
Likes: 5539
Joined Dec 2011
     
Nov 29, 2017 21:37 |  #3

MalVeauX wrote in post #18507108 (external link)
Metering does nothing when you're using set values in manual. It merely tells you what your relative exposure is to the metering process if you were trying to gauge exposure. But it doesn't work for this in any meaningful way. When it comes to astro, there is no metering method beyond the histogram.

Very best,


I had wondered as I was seeing a concentration of contrast towards the middle almost like a center weighted mesurement, but I think was a something from going from one app to another (LR/Topaz/Photoshop.

P.


Some stuff.

  
  LOG IN TO REPLY
andicus
Member
224 posts
Likes: 91
Joined Aug 2009
Post edited 8 months ago by andicus.
     
Nov 29, 2017 22:17 |  #4

It looks like you need something to make it easier to focus.

You should try the trial version of Backyard Nikon.

This, of course, assumes you have access to a laptop, while you're imaging.

I haven't checked the Nikon features, but the Canon version does a number of things to help

You get a large image through LiveView (on the laptop), which you can zoom to 100%. That alone does wonders for focusing.

The Canon version also lets you adjust focus without having to touch the camera, with 3 levels of sensitivity.

You can set it up to take all your exposures by choosing your ISO, aperture, and exposure time, along with how many exposures you want. You can also control mirror lockup to avoid camera shake. Your images can be saved to the laptop, the camera, or both. (edit: I just read that Backyard Nikon doesn't support mirror lockup)

You can also name your target. Your files end up named with all the information. For example, when shooting M51, my images were named as:

M51_LIGHT_20s_2000iso_​+28c_20160630-00h33m23s877ms.CR2

So it's Canon raw frame of M51, a light frame, 20 second exposure ISO 2000, the sensor was 28C, and it was shot on June 30, 2016 at 00:33:23.877.

No aperture was listed as it was shot through my scope.

It is extremely useful, and fairly inexpensive if you decide to buy a full license.

You can see it, here: https://www.otelescope​.com …remium-edition-otl-byn-p/ (external link)


Canon EOS 7D EOS Digital Rebel XTi / EOS 400D / Kiss Digital X | Canon EF 50mm f/1.4 USM EF 70-200mm f/2.8L USM EF-S 55-250mm f/4-5.6 IS

  
  LOG IN TO REPLY
Pagman
THREAD ­ STARTER
I just hold the thing :-)
Avatar
8,033 posts
Gallery: 1556 photos
Likes: 5539
Joined Dec 2011
     
Nov 29, 2017 22:26 |  #5

andicus wrote in post #18507138 (external link)
It looks like you need something to make it easier to focus.

You should try the trial version of Backyard Nikon.

This, of course, assumes you have access to a laptop, while you're imaging.

I haven't checked the Nikon features, but the Canon version does a number of things to help

You get a large image through LiveView (on the laptop), which you can zoom to 100%. That alone does wonders for focusing.

The Canon version also lets you adjust focus without having to touch the camera, with 3 levels of sensitivity.

You can set it up to take all your exposures by choosing your ISO, aperture, and exposure time, along with how many exposures you want. You can also control mirror lockup to avoid camera shake. Your images can be saved to the laptop, the camera, or both. (edit: I just read that Backyard Nikon doesn't support mirror lockup)

You can also name your target. Your files end up named with all the information. For example, when shooting M51, my images were named as:

M51_LIGHT_20s_2000iso_​+28c_20160630-00h33m23s877ms.CR2

So it's Canon raw frame of M51, a light frame, 20 second exposure ISO 2000, the sensor was 28C, and it was shot on June 30, 2016 at 00:33:23.877.

No aperture was listed as it was shot through my scope.

It is extremely useful, and fairly inexpensive if you decide to buy a full license.

You can see it, here: https://www.otelescope​.com …remium-edition-otl-byn-p/ (external link)


Sounds like a great tool but there is no way I could hook up my laptop while outside (the wife would have kittens with the door open) its only a small outside patio we have but when I am astronamer-ing its outside in the cold door closed.

P.


Some stuff.

  
  LOG IN TO REPLY
andicus
Member
224 posts
Likes: 91
Joined Aug 2009
     
Nov 30, 2017 00:20 as a reply to  @ Pagman's post |  #6

Laptops are portable! :)

Although I have power outside for my setup, you could use battery power to at least get your focus set, and do some test shots.

If it's just not feasible, that's too bad. Once you use it, you'll never want to look at a tiny camera display again.


Canon EOS 7D EOS Digital Rebel XTi / EOS 400D / Kiss Digital X | Canon EF 50mm f/1.4 USM EF 70-200mm f/2.8L USM EF-S 55-250mm f/4-5.6 IS

  
  LOG IN TO REPLY
MalVeauX
"Looks rough and well used"
Avatar
12,777 posts
Gallery: 1161 photos
Best ofs: 3
Likes: 8325
Joined Feb 2013
Location: Florida
     
Nov 30, 2017 04:38 |  #7

You can also take a piece of paper/cardstock and measure/cut a bahtinov mask.

Very best,


My Flickr (external link) :: My Astrobin (external link)

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

701 views & 1 like for this thread
Pollux and company
FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is prakashman
723 guests, 252 members online
Simultaneous users record so far is 6430, that happened on Dec 03, 2017

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.