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
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Guest
Forums  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear
Register to forums    Log in

 
FORUMS Photo Sharing & Discussion Astronomy & Celestial 
Thread started 19 Jul 2020 (Sunday) 20:02
Search threadPrev/next
sponsored links (only for non-logged)

Advise for first milkyway shoot

 
SAPSTAR
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
     
Jul 19, 2020 20:02 |  #1

I am planning to go out to shoot milkyway photos in the near future. I tried just shooting the sky outside my home today to see if I am able to focus and see what I can capture. Please see the below 2 photos. I haven't done any processing on them except applying some crop to remove the surrounding elements.

The first one is shot with a sony 24mm f/1.4 GM lens, ISO 6400, 6s. The second one is shot with a Samyang 14mm f/2.8 lens, ISO 6400, 15s. There is some lens flare from the street light in the Samyang Image.

Can you please help me with the below questions?
1. Are the stars looking sharp in the photos?
2. In the Sony photos I see a red circle around the stars. Is this normal?
3. Manual focus was really tricky. I used 12.5x Magnification and tried to focus on a star. As I moved focus ring left star was getting bigger, so I tried moving it right till it looked like a single pixel. I didn't get any focus peaking.

Not sure how much detail will come through in the JPEGS. You can see the Sony ARW files in the below link.
https://www.amazon.com …ZH6lNdJjwG4Djzc​k8qlvkRMoS (external link)

IMAGE: https://photography-on-the.net/forum/images/hostedphotos_lq/2020/07/3/LQ_1055174.jpg
Image hosted by forum (1055174) © SAPSTAR [SHARE LINK]
THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.

IMAGE: https://photography-on-the.net/forum/images/hostedphotos_lq/2020/07/3/LQ_1055175.jpg
Image hosted by forum (1055175) © SAPSTAR [SHARE LINK]
THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.



  
  LOG IN TO REPLY
Terry ­ McDaniel
Goldmember
Avatar
2,223 posts
Gallery: 738 photos
Likes: 7403
Joined Sep 2014
Location: Lebanon, OK
     
Jul 20, 2020 10:18 |  #2

Mine always come out overexposed so I'm following this thread. The really great Milky Way pictures are most likely stacked images and edited with one of the better photo editing apps.


TerryMc
"The .44 spoke,
It spit lead and smoke,
And 17 inches of flame."
Marty Robbins

  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
     
Jul 20, 2020 11:13 as a reply to  @ Terry McDaniel's post |  #3

I am thinking of going out tonight and giving it a try as it is new moon.
Still unable to figure out all the settings. Probably will try shooting multiple photos and different ISO settings. Considering a max of 7s for the 24mm and 15s for the 14mm. These are the Default NPF calculator values I am getting from PhotoPills.




  
  LOG IN TO REPLY
Capn ­ Jack
Cream of the Crop
Avatar
9,179 posts
Gallery: 2961 photos
Likes: 27755
Joined Mar 2010
Location: NE USA
     
Jul 20, 2020 16:56 |  #4

The stars look fine. I think that you'll have a hard time getting it if there is a street light nearby, as there is too much scattered light and it is stronger than the light from the milky way.




  
  LOG IN TO REPLY
kawi_200
Goldmember
1,477 posts
Gallery: 10 photos
Likes: 236
Joined Jul 2011
Location: Stanwood, WA
     
Jul 20, 2020 19:16 |  #5

I am very amateur but here's a bit of what I've learned. I was just out shooting the comet Neowise last night :)

Stop your lenses down just a click or two. Try the 24mm at f/2.0. The Canon 24mm f/1.4 has an issue known as coma where it almost creates comet tails in the stars. Stopping down a little helps get rid of it. Could be what you are seeing in your? I don't see any red rings on my screen.

Getting out away from the lights will be the best thing for you (obviously). My issue is focusing in the dark. You can do a couple things to help yourself. I find a light source like a far away street lamp, or even last night I used Jupiter, and have the lens AF on it then switch to manual and be careful not to touch the focus afterward. I never know where my focus distance ring is for maximum furthest focus, so I always use AF. Another option is to focus in the light on something like a tree or mountain before sun goes down. Then switch to MF and don't touch the focus. Easier to get good focus but harder to not change the focus on accident.

Wider lenses can use a bit longer shutter time and not show too much star movement. 30sec on the 14mm and resized for internet can be just fine. But shorter times are still preferable.

Use mirror lock up and a timer or remote. Even the mirror slap can introduce movement. Using the mirror lock up will open the mirror and then wait for a few seconds, or set a 10sec timer. Then just the shutter moves and you'll get less movement.


5D4 | 8-15L | 28-135mm f/3.5-5.6 IS | 24L II | 40mm pancake | 100L IS | 70-200mm f/2.8L IS mk2 | 400mm f/4 DO IS

  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
Post edited over 3 years ago by SAPSTAR. (2 edits in all)
     
Jul 20, 2020 20:53 |  #6

@kawi_200 thanks very much for the info. I went out to do my first milkyway shoot today. Below is what I was able to get. I was able to shoot with Samyang 14mm f2.8 at 2.8, ISO 800 and 15sec shutter speed. Tried at ISO 250, 1250, 1000 as well, but 800 looked best. The cloud started moving in, so I had to call it a day.
Milky way doesn't look bright like some other photos I have seen... May be I can do a better job next time :).
Also the jpeg looks darker than my processed version in Capture One. Will need to check what's going on there...

Adding one with the sony 24mm f/1.4. Shot at ISO 250, 4s shutter speed and f/1.4.

I haven't done any noise cancellation in both the shots. Only changed white balance, exposure, clarity and curves.

IMAGE: https://photography-on-the.net/forum/images/hostedphotos_lq/2020/07/3/LQ_1055351.jpg
Image hosted by forum (1055351) © SAPSTAR [SHARE LINK]
THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.

IMAGE: https://photography-on-the.net/forum/images/hostedphotos_lq/2020/07/3/LQ_1055355.jpg
Image hosted by forum (1055355) © SAPSTAR [SHARE LINK]
THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.



  
  LOG IN TO REPLY
Terry ­ McDaniel
Goldmember
Avatar
2,223 posts
Gallery: 738 photos
Likes: 7403
Joined Sep 2014
Location: Lebanon, OK
     
Jul 21, 2020 16:53 |  #7

One other trick to reduce mirror slap, hold a dark object in front of the lens (not touching it), press the shutter, wait two seconds then remove the object. I just use my ball cap. Then about two seconds before the shutter closes put the hat back in front of the lens.


TerryMc
"The .44 spoke,
It spit lead and smoke,
And 17 inches of flame."
Marty Robbins

  
  LOG IN TO REPLY
Capn ­ Jack
Cream of the Crop
Avatar
9,179 posts
Gallery: 2961 photos
Likes: 27755
Joined Mar 2010
Location: NE USA
     
Jul 21, 2020 17:08 |  #8

SAPSTAR wrote in post #19096465 (external link)
@kawi_200 thanks very much for the info. I went out to do my first milkyway shoot today. Below is what I was able to get. I was able to shoot with Samyang 14mm f2.8 at 2.8, ISO 800 and 15sec shutter speed. Tried at ISO 250, 1250, 1000 as well, but 800 looked best. The cloud started moving in, so I had to call it a day.
Milky way doesn't look bright like some other photos I have seen... May be I can do a better job next time :).
Also the jpeg looks darker than my processed version in Capture One. Will need to check what's going on there...

Adding one with the sony 24mm f/1.4. Shot at ISO 250, 4s shutter speed and f/1.4.

I haven't done any noise cancellation in both the shots. Only changed white balance, exposure, clarity and curves.
Hosted photo: posted by SAPSTAR in
./showthread.php?p=190​96465&i=i18779238
forum: Astronomy & Celestial

Hosted photo: posted by SAPSTAR in
./showthread.php?p=190​96465&i=i85976306
forum: Astronomy & Celestial

It's looking better. With a 14 mm lens, you can try for a 30 second exposure. There's some sort of equation that relates the focal length and exposure time before star streaking from the earth's rotation becomes noticeable. That means the buildings will be too bright, and you will need to make a composite image so they show properly exposed. with your milky way shot.




  
  LOG IN TO REPLY
goalerjones
Goldmember
Avatar
1,807 posts
Gallery: 387 photos
Best ofs: 2
Likes: 5686
Joined May 2018
     
Jul 21, 2020 17:29 |  #9

https://monochrome.sut​ic.nu …era-score-calculator.html (external link)

Here is a lens calculator for astrophotography




  
  LOG IN TO REPLY
kawi_200
Goldmember
1,477 posts
Gallery: 10 photos
Likes: 236
Joined Jul 2011
Location: Stanwood, WA
     
Jul 21, 2020 23:57 |  #10

Capn Jack wrote in post #19096907 (external link)
It's looking better. With a 14 mm lens, you can try for a 30 second exposure. There's some sort of equation that relates the focal length and exposure time before star streaking from the earth's rotation becomes noticeable. That means the buildings will be too bright, and you will need to make a composite image so they show properly exposed. with your milky way shot.

Could also try an ND filter on the lower land portion and have the sky fully exposed. That would only work well with shots in a field or over water that have a nice flat horizon.


5D4 | 8-15L | 28-135mm f/3.5-5.6 IS | 24L II | 40mm pancake | 100L IS | 70-200mm f/2.8L IS mk2 | 400mm f/4 DO IS

  
  LOG IN TO REPLY
kawi_200
Goldmember
1,477 posts
Gallery: 10 photos
Likes: 236
Joined Jul 2011
Location: Stanwood, WA
     
Jul 21, 2020 23:58 |  #11

SAPSTAR wrote in post #19096465 (external link)
@kawi_200 thanks very much for the info. I went out to do my first milkyway shoot today. Below is what I was able to get. I was able to shoot with Samyang 14mm f2.8 at 2.8, ISO 800 and 15sec shutter speed. Tried at ISO 250, 1250, 1000 as well, but 800 looked best. The cloud started moving in, so I had to call it a day.
Milky way doesn't look bright like some other photos I have seen... May be I can do a better job next time :).
Also the jpeg looks darker than my processed version in Capture One. Will need to check what's going on there...

Adding one with the sony 24mm f/1.4. Shot at ISO 250, 4s shutter speed and f/1.4.

I haven't done any noise cancellation in both the shots. Only changed white balance, exposure, clarity and curves.
Hosted photo: posted by SAPSTAR in
./showthread.php?p=190​96465&i=i18779238
forum: Astronomy & Celestial

Hosted photo: posted by SAPSTAR in
./showthread.php?p=190​96465&i=i85976306
forum: Astronomy & Celestial

Looks great, the 14mm shot does start to show a little bit, and looks like you caught a shooting star too.


5D4 | 8-15L | 28-135mm f/3.5-5.6 IS | 24L II | 40mm pancake | 100L IS | 70-200mm f/2.8L IS mk2 | 400mm f/4 DO IS

  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
     
Jul 22, 2020 03:12 as a reply to  @ Capn Jack's post |  #12

Actually based on the 500 Rule I think I can get 36 Seconds, but there is a new rule now based on the camera Megapixel as well, called NPF rule. I used Photo Pills app which calculates this to be 15.88 Sec. So using 15 Sec for the 14mm. For the 24mm it gave me 7 Sec.

I am planning to go again in the weekend to give it another try.




  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
     
Jul 22, 2020 03:18 as a reply to  @ goalerjones's post |  #13

I used the one in the below app. It lets me select my camera model, set focal length and f-stop and provides the max shutter speed.
https://www.photopills​.com/ (external link)




  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
     
Jul 22, 2020 03:21 as a reply to  @ Terry McDaniel's post |  #14

I am using a Sony A7R II which is mirrorless. Is this still relevant for me?




  
  LOG IN TO REPLY
SAPSTAR
THREAD ­ STARTER
Member
Avatar
168 posts
Gallery: 3 photos
Likes: 51
Joined Feb 2010
Location: Bexleyheath, UK
Post edited over 3 years ago by SAPSTAR.
     
Jul 22, 2020 05:24 |  #15

Are my stars sharp? Do I have any issues with Coma, focus, camera shake or shutter speed? Would someone be able to look at the RAW files from the last shoot and let me know please? One of the photos is shot with Sony 24mm and the other with Samyang 14mm. I am planning to try this again in the weekend and want to get everything right this time.

https://www.amazon.com …tB6hO1rciPjzGg5​cqZ0&mgh=1 (external link)




  
  LOG IN TO REPLY
sponsored links (only for non-logged)

2,835 views & 12 likes for this thread, 6 members have posted to it and it is followed by 7 members.
Advise for first milkyway shoot
FORUMS Photo Sharing & Discussion Astronomy & Celestial 
AAA
x 1600
y 1600

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

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 2.58forum software
version 2.58 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is semonsters
1622 guests, 142 members online
Simultaneous users record so far is 15,144, that happened on Nov 22, 2018

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.