DPReview.com is closing April 10th - Find out more

NX-Mini mount register distance

Started May 23, 2015 | Discussions thread
geo444
geo444 Contributing Member • Posts: 547
Re: ... Samsung NX mini : First Light at prime focus...

siamak_86 wrote:

The only source of illumination in the #2 & #3 was some yellow lights (sodium light bulbs maybe) in the park, which I guess was full of IR radiation.

their Brightness / Contrast / Saturation balance are pleasing !

I didn't add any saturation/vibrance to the #5, but I did to the others.

same as above + Composition !

F/8 suggestion to avoid lens Field-Curvature and/or lack of Depth of Field...

I'll try it as soon as I find some green foliages. I was in my hometown (a semi-tropical climate where plants are active all year round) when I shot these, but now I'm back. However, I've just been afraid of narrowing the aperture to F/8 because of possible diffraction and so loss of sharpness. F/5.6 for a 1" sensor already produces a lot of
depth of field.

Pics from your Full-Spectrum NX-mini show Center Sharpness but Borders Blur...
That's why I spoke about Field-Curvature and / or Lack of Depth of Field...
Maybe you should see what happens with Manual Focus on a Brick Flat Wall ?
Maybe a side effect of the Filter Removal ?
I shot a single LandScape at F/8 to show the Filter Removal effect :
http://mecastronics.free.fr/SamsungNXminiTopIR.html

Anyway, this green pollution in your picture is hard for me to find the reason for.

This is Not "Green Pollution", but rather Rarely Shown Parts of the M1 Nebula !
I recently found a Challenge entirely dedicated to M1 :
https://www.cloudynights.com/topic/304169-january-2011-challenge-entries-m1/
3 Pictures show these Green Parts : those from MikeML, sdbodin, DeanS.
Green Parts are visible at the opposite side of the 2 nearest stars around M1 :

M1 Crab-Nebula picture (30 .SRW files stacked) shows Green-Parts // Green highlighted

This is a true Sensitivity Performance from a $100 " Selfie Camera " mounted on a $300 SkyWatcher 254 / 1200 newtonian in a stormy and well lit city at sea side !

I like #3, #6, #7, #8 & #10, Brightness, Contrast, Saturation, Composition are pleasing

 geo444's gear list:geo444's gear list
Fujifilm FinePix S2 Pro Pentax K-5 Samsung NX mini +9 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow