Moonrise & Aurora

Moonrise & Aurora

by Jakub

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133 reputation
7
bio website orthogonaltonormal.com
location Johnstown, PA
age 31
visits member for 1 year, 2 months
seen 2 days ago
stats profile views 6
//TODO Glorious Lies

May
3
comment Does this RGB-patterned reflector have benefits for digital photography?
I wouldn't trust an apparent snake oil seller to cheat in comparison results. Nothing short of positive comparison images from a trusted 3rd party would be convincing.
Apr
9
comment Is GPU or CPU more important for Photoshop and Lightroom?
A number of Puget Systems computers have been reviewed favorably by Anandtech: anandtech.com/…
Mar
21
comment When and why should I consider buying a speedlight/external flash?
@MattGrum much better now. :)
Mar
6
comment Why is the main sensor not used instead of the separate AF sensor to focus a DSLR?
I think another advantage, especially historically (with modern designs supporting HD video this is less of a factor), is that the few dozen pixels on an AF sensor can be read much faster than the millions on the primary sensor allowing for a faster feedback loop.
Feb
13
comment What lens focal length most closely resembles the human eye perspective?
@MattGrum If the image from the 10mm APS-C lens was displayed not as a conventional photograph; but with VR Goggles that didn't restrict the users peripheral vision would the result then become 'normal'? Or to word my question differently, is the image considered abnormal because it's compressing data consisting of the entire human FoV into an small fraction of the FoV of the viewer?
Dec
15
awarded  Teacher
Dec
14
comment Are meteors dim?
And I was making a general answer...
Dec
14
awarded  Editor
Dec
14
revised Are meteors dim?
correction to timespan for meteors
Dec
14
awarded  Commentator
Dec
14
comment Are meteors dim?
@DarkcatStudios Meteors can last for several seconds; this is most likely to happen when the radiant is low on the horizon because the meteor rate of penetration into thicker layers of the atmosphere is slower. amsmeteors.org/mcleod/mcleod4.html
Dec
14
answered Are meteors dim?
Sep
10
comment Why the Curiosity pictures are shown tilted?
One additional possibility, since these are early images, is that NASA just hasn't gotten around to aligning/calibrating the cameras rotation axis to be parallel to the horizon yet.
Aug
30
comment What are factors to look at when going from a entry level DSLR to a higher level?
@camflan I was referring to your rule. Most amateurs in any field are, almost by definition, going to be at the casual end of the range and even if they have something beyond the kit lens it'll be the cheapest one that looks like it's good enough.
Aug
30
comment What are factors to look at when going from a entry level DSLR to a higher level?
@camflan isn't that inevitable since an entry level body is significantly more expensive than an entry level lens?
Aug
10
comment Why milky way galaxy cannot be seen by human eye while by camera?
@vivek_jonam light pollution raises the brightness of the background sky; as a result there's no longer enough contrast for the eye to perceive the difference between stars and the sky. Higher sensitivity (>50% vs IIRC 1-2%), longer exposure times (the eye maxes out at ~1/10th second), and larger aperture sizes (the pupil tops out at 7mm) allow a camera to collect more light and lift more detail above the noise floor. You can however get better images with a camera from a dark location than one that's badly light polluted.
May
7
awarded  Supporter
May
2
awarded  Tag Editor
May
2
revised astrophotography wiki description
This is the more extensive tag wiki for astrophotography from Astronomy.SE
May
2
suggested suggested edit on astrophotography tag wiki