Old 21-10-2018, 01:42 PM
MortonBay (Jurgen)
Registered User

MortonBay is offline
Join Date: Jun 2018
Location: Victoria Point
Posts: 8
Nikon 600mm ASF F4 Lens

Hi All
Would appreciate constructive comment on this image please, taken with my Nikon D810
Nikon 600mm AFS ED IF F4 lens
ISO2500, F10, 1/1000sec
Processed through DXO 11

Attached Thumbnails
Click for full-size image (Astro 1.jpg)
96.5 KB47 views
Reply With Quote
Old 21-10-2018, 02:13 PM
Registered User

raymo is offline
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 5,104
Good effort JK. Exposure is about right, but it is not pin sharp, and I think you have overdone the contrast a little, giving the image a sort of harshness. I've attached an image to illustrate my point.[My image is slightly over exposed, but ignore that] It is not as easy as it would seem getting single frame lunar images pin sharp, due mainly to atmospheric turbulence, and to a lesser degree mirror and shutter vibration. I would drop the ISO to around 1000, and use a shutter speed around 1/4000th. A shutter speed this fast is over and done with before any
vibrations can really get going. Also lock up your mirror before taking the shot; one less thing to vibrate. Many of the very best lunar shots are achieved using hundreds of video frames stacked in programs like Registax, as are
most planetary images. For single frames take 10 or 20 and examine each one closely, some will be a little better than others.
Attached Thumbnails
Click for full-size image (012-down.jpg)
86.7 KB32 views

Last edited by raymo; 21-10-2018 at 02:26 PM. Reason: more text
Reply With Quote


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +10. The time is now 06:50 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Lunatico Astronomical
Astronomy and Electronics Centre