APT Histogram

Discuss how you are able to get those fantastic images!!!
Post Reply
User avatar
Graeme1858 Great Britain
Co-Administrator
Co-Administrator
Articles: 1
Online
Posts: 7438
Joined: Mon Jun 24, 2019 7:16 pm
4
Location: North Kent, UK
Status:
Online

TSS Awards Badges

TSS Photo of the Day

I Broke The Forum.

APT Histogram

#1

Post by Graeme1858 »


A quick question if I may.

This is a screen grab of my histogram in APT. The Luminance graph is shaded with a gap. Does the gap suggest ideal exposure? Should my graph peak be at this position? Or is it for some other purpose?

Capture.PNG
Capture.PNG (5.46 KiB) Viewed 1292 times

Cheers

Regards

Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.

https://www.averywayobservatory.co.uk/
User avatar
JayTee United States of America
Universal Ambassador
Articles: 2
Online
Posts: 5644
Joined: Thu Apr 25, 2019 3:23 am
5
Location: Idaho, USA
Status:
Online

TSS Awards Badges

TSS Photo of the Day

Re: APT Histogram

#2

Post by JayTee »


Hi Graeme,

When in doubt, RTFM...
Here: https://ideiki.com/astro/usersguide/dsl ... I1&mw=MjQw

Cheers,
JT

PS, it is showing the manually set black and white points within the luminance channel. jt
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6R, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
∞ Cameras: #1: ZWO ASI294MC Pro #2: 662MC #3: 120MC, Canon T3i, Orion SSAG, WYZE Cam3
∞ Binos: 10X50,11X70,15X70, 25X100 ∞ AP Gear: ZWO EAF and mini EFW and the Optolong L-eXteme filter
∞ EPs: ES 2": 21mm 100° & 30mm 82° Pentax XW: 7, 10, 14, & 20mm 70°

Searching the skies since 1966. "I never met a scope I didn't want to keep."

Image
User avatar
Graeme1858 Great Britain
Co-Administrator
Co-Administrator
Articles: 1
Online
Posts: 7438
Joined: Mon Jun 24, 2019 7:16 pm
4
Location: North Kent, UK
Status:
Online

TSS Awards Badges

TSS Photo of the Day

I Broke The Forum.

Re: APT Histogram

#3

Post by Graeme1858 »


JayTee wrote: Tue Nov 19, 2019 9:52 pm When in doubt, RTFM...

Anybody could do that!

I'll abandon the pursuit of experienced personal advice then and go read the book! :D

Thanks for the link.

Regards

Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
ASI1600MM Pro, ASI294MC Pro, ASI224MC
ZWO EFW, ZWO OAG, ASI220MM Mini.
APM 11x70 ED APO Binoculars.

https://www.averywayobservatory.co.uk/
Post Reply

Create an account or sign in to join the discussion

You need to be a member in order to post a reply

Create an account

Not a member? register to join our community
Members can start their own topics & subscribe to topics
It’s free and only takes a minute

Register

Sign in

Return to “Image processing”