|
Forum: Pentax K-5 & K-5 II
01-08-2015, 08:54 AM
|
| |
| |
|
Forum: Pentax DSLR Discussion
09-25-2014, 03:07 AM
|
| |
Looking forward to images with it Mike.
|
|
Forum: Pentax DSLR Discussion
09-22-2014, 11:08 PM
|
| |
Here is a single frame, about 61 seconds at ISO6400 and the CLS filter. This is with no post processing but in camera balance settings shifted away from blue. The problem with this filter and an unmodified K-x, when the temperature gets warm in summer it can suffer from red clipping making the red channel very noisy. With a full spectrum modified camera it's much better.
|
|
Forum: Pentax DSLR Discussion
09-22-2014, 07:27 PM
|
| |
I have the 48mm (2") CLS. Yes it does produce a blue colour cast that can be difficult to balance. Two stops sounds about right. In general I prefer the Baader Semi-Apo filter. Virtually no colour shift and only 1 F stop dimmer. Or you could go for the Astronomik UHC-E which also claims to have little colour shift.
The 48mm filters are designed to be used inline down the optical path of a telescope. With most telescope to camera adapters they just screw in.
|
|
Forum: Pentax DSLR Discussion
09-19-2014, 01:44 AM
|
| |
Very nice images Stephen. Which method did you use to add the Ha data?
|
|
Forum: Pentax DSLR Discussion
09-16-2014, 01:39 AM
|
| |
M16 is a tricky one for an unmodified camera so you've done well.
|
|
Forum: Pentax DSLR Discussion
09-14-2014, 12:53 PM
|
| |
| |
|
Forum: Troubleshooting and Beginner Help
09-06-2014, 10:35 PM
|
| |
Thanks guys. Yeah these remotes are really expensive ones at $1 each lol. The funny thing is, with the one that works for other camera models, it still works with the Nikon long after it's stopped working with the Pentax's. My old D70s must be more forgiving of dodgy remotes.
|
|
Forum: Troubleshooting and Beginner Help
09-06-2014, 03:50 AM
|
| |
I do most of my astrophotography with the IR remote to avoid vibration when actuating the shutter. Every now and then they stop working. They use those flat CR2025 batteries. Battery voltage is okay, I think, at least according to the multimeter. IR LED flashes as seen on IR camera. Twisting the remote sometimes brings it back to life for a while, then they die again. Actually die is the wrong word. They keep working, just that they don't trip the shutter. I have 4 remotes, different brands (but cheap Chinese) and they all do the same thing. What's going on? Cheap Chinese rubbish?
|
|
Forum: Pentax DSLR Discussion
09-03-2014, 06:40 AM
|
| |
Awesome shot Stephen!
I've been nibbling at the Orion nebula for a couple of nights. About 4 hours of data. It's a bit soft as the atmosphere was wild! Skywatcher ED100 at F7.2, unmodified Pentax K-5, no filter for about half the data and Baader Semi-Apo filter for the other half.
Bigger at Astrobin. M42 The Orion Nebula (Kevin) | AstroBin |
|
Forum: Pentax DSLR Discussion
09-01-2014, 02:47 AM
|
| |
It's a little globular cataloged as PGC260239.
|
|
Forum: Pentax DSLR Discussion
08-30-2014, 08:09 PM
|
| |
Comet C/2013 A1 (Siding Spring) passes cluster 47 Tucanae. ED100 at F7.2, Pentax K-5.
|
|
Forum: Pentax DSLR Discussion
08-29-2014, 07:01 PM
|
| |
Super shots Mike! Looks like you are having a ball in this clear weather.
|
|
Forum: Pentax DSLR Discussion
08-26-2014, 09:49 AM
|
| |
Yeah it was pretty bad a few hours ago. Even the windows fogged up!
|
|
Forum: Pentax DSLR Discussion
08-26-2014, 01:21 AM
|
| |
Jeez that's a nice helix. I had a go at it a few weeks ago and it was pretty rotten.
|
|
Forum: Pentax DSLR Discussion
08-23-2014, 12:22 PM
|
| |
Nice images Mike. You gotta be happy with those. I can't quite get an angle on M31 from my setup point. It's directly behind a street light.
The comet has now moved away from the Rosette nebula as it heads towards perihelion.
|
|
Forum: Pentax DSLR Discussion
08-23-2014, 04:23 AM
|
| |
Comet C/2013 V5 (Oukaimeden) has been scooting past the Rosette nebula over the last couple of days. This is from last night with the ED100 at F7.2 and Pentax K-5. Didn't get as much time on it as I would have liked due to cloud and me screwing things up. It's only 7 minutes. My special interest in astronomy is comets, or at least photographing them.
|
|
Forum: Pentax DSLR Discussion
08-19-2014, 05:47 AM
|
| |
Original internal filter, no cooling. About half the shots were taken at ISO1600 and the rest ISO3200 for the darker CLS and deep sky filter.
Thanks IO. The K-5 does seem to be performing a step above the K-x, but it is winter here with cooler temps no doubt helping. I have retired the K-x for astro work now and am just using the K-5 as it's a delight to use. I have yet to get the GPS unit for portable work, but have had too many letters from Bill lol.
|
|
Forum: Pentax DSLR Discussion
08-18-2014, 10:28 PM
|
| |
NGC6960 the Western Veil Nebula taken over the last couple of nights. 100 x 3 minute subs, ED100 at F7.2, Astronomik CLS, Baader Semi APO and Lumicon deep sky filters, Pentax K-5, HEQ5 pro, guiding with a 68mm guidescope, video camera and PHD2.
Bigger at Astrobin. NGC6960 The Western Veil Nebula (Kevin) | AstroBin |
|
Forum: Pentax K-5 & K-5 II
07-30-2014, 11:43 PM
|
| |
Wow that's a spectacular image Seti... I like that you used an achro narrow band.
Comet 2014 E2 (Jacques) is in the morning sky at the moment. Imaged with a Skywatcher ED100 at F 7.2, 59 x 30 seconds, unmodified Pentax K-5.
Astrobin ---> Comet C/2014 E2 (Jacques) July 29 (Kevin) | AstroBin |
|
Forum: Pentax DSLR Discussion
07-25-2014, 04:29 AM
|
| |
Now you tell me....
Astrophotography is 99% of my photography these days. I haven't killed a camera yet, but now that I have autoguiding setup, the exposures will be getting longer, probably to 10 minute max.
|
|
Forum: Pentax DSLR Discussion
07-08-2014, 05:58 PM
|
| |
Glad you figured out the problem Bill. That's a nice shot you have.
This is my longest total time I've spent on a single object. This is galaxy NGC247. It has very low surface brightness so needs lots of time. This is 327 x 1 minute subs through the ED100 at F9, Pentax K-5. In the bigger Astrobin upload, lots of tiny little galaxies in the background start coming through. I find it quite amazing. I really want to take more galaxy shots now.
NGC247 (Kevin) | AstroBin |
|
Forum: Pentax DSLR Discussion
07-08-2014, 05:11 PM
|
| |
Tamron hotspot, yeah mine does it too in IR.
I have an older full spectrum Nikon that I put all manner of filters on and it's lots of fun.
|
|
Forum: Pentax DSLR Discussion
07-07-2014, 11:49 AM
|
| |
Hi Bill, I don't have my histogram much past the far left hand side. Maybe you are overexposing causing the image to be washed out?
|
|
Forum: Pentax DSLR Discussion
07-05-2014, 07:54 PM
|
| |
Ah thanks scratchpaddy. That explains it.
|
