Forgot Password
Pentax Camera Forums Home
 

Showing results 1 to 3 of 3 Search:
Forum: Mini-Challenges, Games, and Photo Stories 06-30-2019, 01:05 PM  
Thematic Post & Discuss Your Astro Tracer Star Trails & Star Shots
Posted By gifthorse
Replies: 39
Views: 1,289
"I tried the calibration thing, but it didn't seem to want to finish, as there was never a confirmation of successful completion, and when I tried to exit and start shooting it said it wasn't done.

How long does it take?"

The question should be "How short does it take?" Rotate the camera on all three axes as quickly as possible. Repeat the rotations until you get confirmation. It may take several rotations around each axis before the calibration is accepted. You don't have to swing or spin the camera a full 360 degrees. 180 in each direction will work. I'd suggest putting the camera strap around your wrist during the rotations in case the camera slips out of your hands. Anytime you shut off the camera it has to be re-calibrated and I will usually re-calibrate every hour or two throughout the night.
Forum: Mini-Challenges, Games, and Photo Stories 08-16-2018, 08:02 PM  
Thematic Post & Discuss Your Astro Tracer Star Trails & Star Shots
Posted By gifthorse
Replies: 39
Views: 1,289
I can't argue with success. And I'd call that image an unqualified success.
Forum: Mini-Challenges, Games, and Photo Stories 08-15-2018, 04:29 PM  
Thematic Post & Discuss Your Astro Tracer Star Trails & Star Shots
Posted By gifthorse
Replies: 39
Views: 1,289
I think with the K-1 you could easily double the ISO and I'd definitely open the aperture. Just a stop or two down from wide open is all you need to sharpen the pinpoint stars. I don't think anything over f5.6 is going to sharpen significantly at night and will just rob the light. For the image you posted, you might try increasing the exposure and the contrast in post processing.

One of the major reasons I chose Pentax was because of the Astrotracer. I just use the recommended calibration and use no more than half of the time the screen says can be used (heck, sometimes I skip the regular calibrations and just jump straight to the precise calibration). My results:
IMGP9719 by Miles Shaylor, on Flickr

Night_Panorama by Miles Shaylor, on Flickr

Perseus in the Milky Way by Miles Shaylor, on Flickr

IMGP1348 by Miles Shaylor, on Flickr

IMGP1353 by Miles Shaylor, on Flickr

This is a 15 second exposure of the Pleiades cluster taken with a 200mm lens.
The Pleiades by Miles Shaylor, on Flickr

This is a 6 second exposure of Jupiter, again with a 200mm lens.
Jupiter and four moons by Miles Shaylor, on Flickr

The Astrotracer doesn't work well with the International space station. Without the Astrotracer, the ISS appears as a straight line.
M42 and ISS by Miles Shaylor, on Flickr

but because the Astrotracer moves the sensor, the ISS appears as a squiggly line.
IMGP4920 by Miles Shaylor, on Flickr

I haven't gotten to try the Astrotracer on Iridium flares or meteors yet.

Some people complain that their results sren't what they expected or desired but for the price and the ability to take long exposures without bulky or expensive mounts, I'm pleased with its performance.
Search took 0.00 seconds | Showing results 1 to 3 of 3

 
Forum Jump


All times are GMT -7. The time now is 11:58 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top