Forgot Password
Pentax Camera Forums Home
 

Showing results 1 to 25 of 241 Search:
Forum: Pentax Medium Format 11-24-2014, 05:23 PM  
Post your medium format photos!
Posted By nightfly
Replies: 12,636
Views: 2,063,707
Some recent exposures on Tri-X dipped in Xtol. First is with the 200mm F/4 SMC 67, other two with the 55 F/4 SMC 67 lens. All with #3 yellow filter. All scanned on a V600.

Washington Junction by Nightfly Photographic, on Flickr

Barn Door by Nightfly Photographic, on Flickr


The Atlantic by Nightfly Photographic, on Flickr
Forum: Pentax K-5 10-17-2014, 11:56 AM  
K-5 For Astrophotography
Posted By nightfly
Replies: 1,090
Views: 260,632
I enjoy the work of many of the PF members posted here as well, there are many enthusiastic and talented folks posting great work! That being said, I appreciate the nice comment. Thank you.
Forum: Pentax K-5 10-09-2014, 03:34 AM  
K-5 For Astrophotography
Posted By nightfly
Replies: 1,090
Views: 260,632
It was clouded here during the eclipse, but I did get a good image of the Moon Monday night.

I used my 8" SCT @ F/6.3 and the K-5 IIs 1/750 second @ ISO 160. Post processed in PS to enhance contrast and detail. I'm generally pleased with it. The 30 year old optic did well.

Moon 10-6-14 by Nightfly Photographic, on Flickr
Forum: Pentax K-5 09-13-2014, 06:40 PM  
No more tests! just pictures
Posted By nightfly
Replies: 7,853
Views: 1,215,555
Last night's Aurora over Flanders Pond in eastern Maine

K-5 IIs 16mm Samyang @ f/2.8 16 seconds ISO 1600 cropped

Aurora Borealis September 12, 2014 by Nightfly Photographic, on Flickr
Forum: Pentax SLR Lens Discussion 08-29-2014, 12:41 PM  
Wide angle extremely sharp lens for night, nightsky and mostly star photography
Posted By nightfly
Replies: 25
Views: 4,825
I am interested in the O-GPS1 and hope to try one soon. That will make travel easier. I have been using an equatorially mounted telescope attached to a permanent pier. The camera rides "piggyback".

You can take a virtual tour of my roll off roof observatory here, the telescope, and the variety of cameras used.

https://www.flickr.com/photos/12598495@N08/sets/72157626760790621/

Taking images of the Milky Way from my home observatory lacks the variety of the scenic landscapes so often sought by photographers. For me, it is has always been about the Milky Way. But, I would like to try the O-GPS1 and move about.
Forum: Pentax Medium Format 08-29-2014, 09:44 AM  
Adapter from Pentax 67 lenses to Canon EOS
Posted By nightfly
Replies: 10
Views: 2,175
If you happen to have a 67 system, as I do, a cheap adapter to use the lenses on a digital body makes sense. They are not designed for digital to be sure, but usable nevertheless. In some cases the 67 glass outperforms modern lenses. I declare my 75mm f/4.5 SMC Takumar the sharpest lens in my bag and that is with it wide open. Even at pixel level it is tack sharp and renders beautifully. Made for film, but more than adequate for digital. Good luck and have fun with a whole new avenue of glass.
Forum: Pentax SLR Lens Discussion 08-29-2014, 09:37 AM  
Wide angle extremely sharp lens for night, nightsky and mostly star photography
Posted By nightfly
Replies: 25
Views: 4,825
Not being familiar with the 8-16, I cannot comment other than to say a prime is generally better corrected and in this case also faster. DXOMark ranked it highly.

It is rather sharp wide open but vignetting can be a bother. At f/2.2 the vignette is tolerable and can be corrected in post, by f/2.8 it is virtually gone.

Focus is internal and it takes 77mm filters. Build quality is also very nice.
Forum: Pentax SLR Lens Discussion 08-29-2014, 07:18 AM  
Wide angle extremely sharp lens for night, nightsky and mostly star photography
Posted By nightfly
Replies: 25
Views: 4,825
The Samyang and other versions fit like a Pentax A lens. It should fit fine and you will have automatic aperture as well. I use the Samyang 16 for astrophotography and you can check out more here, including one from last night.


https://www.flickr.com/photos/12598495@N08/sets/72157646579063277/
Forum: Pentax SLR Lens Discussion 08-25-2014, 09:58 AM  
Samyang for Astro/Night - 10/14/16
Posted By nightfly
Replies: 9
Views: 5,504
The max aperture was a major consideration. It is sharp wide open but I stop down when I want to control vignetting. The 10mm was not out at the time I purchased and the Sigma 18-35 / 1.8 was "vaporware" at the time. I needed a good wide for my K-5 IIs . My first copy was decentered but B&H cheerfully swapped copies.

Prices have fallen and I recommend giving one a try and return if your not satisfied.

Good luck!
Forum: Pentax DSLR Discussion 08-23-2014, 04:45 AM  
Astrophotography
Posted By nightfly
Replies: 1,132
Views: 248,220
I used my equatorial mount. I am going to try the Astrotracer at some point, but an equatorial mount guarantees perfect tracking every time without calibration issues that I often hear about. When I shoot a frame I don't want it to be an experiment.
Forum: Pentax SLR Lens Discussion 08-22-2014, 10:01 AM  
Samyang for Astro/Night - 10/14/16
Posted By nightfly
Replies: 9
Views: 5,504
Love my 16/2 Samyang. My first copy exhibited decentering, returned for another copy and it was good with performance on par with reviews. Some coma in the corners, but a very nice option, especially as prices have fallen. You can view my photostream on Flickr for more work with this lens.

This was 92 seconds at f/3.2 ISO 3200 under dark skies with my K-5IIs.

Milky Way - Detailed by Nightfly Photographic, on Flickr
Forum: Pentax DSLR Discussion 08-20-2014, 05:15 PM  
Astrophotography
Posted By nightfly
Replies: 1,132
Views: 248,220
A shot with the K-5 IIs and 16mm f/2 Samy @ f/3.2 and 92 seconds at ISO 3200. A bit over-processed, but I was pulling out some decent details from the raw file.

Milky Way - Detailed by Nightfly Photographic, on Flickr
Forum: Pentax K-5 08-20-2014, 05:11 PM  
Post Your K5IIs Pictures Here!
Posted By nightfly
Replies: 2,314
Views: 328,524
The K-5IIs excels in astrophotography.

Here is a 92 second tracked exposure using the Samyang 16mm f/2 @ f/3.2

Milky Way - Detailed by Nightfly Photographic, on Flickr
Forum: Pentax K-5 08-18-2014, 10:05 AM  
Post Your K5IIs Pictures Here!
Posted By nightfly
Replies: 2,314
Views: 328,524
K-5 IIs with SMC 67 200MM F/4 @ F/5.6

Morning Moon August 16 2014 200mm by Nightfly Photographic, on Flickr
Forum: Pentax K-5 08-11-2014, 06:15 PM  
No more tests! just pictures
Posted By nightfly
Replies: 7,853
Views: 1,215,555
The recent "Supermoon" at Acadia National Park, Maine

I used my Pentax 6X7 400MM f/4 SMC Takumar @ f/8 which did surprisingly well with the high contrast Moon. The lens is plenty sharp on a cropped sensor, but contrast can be a challenge in difficult lighting.


Blueberry Moon by Nightfly Photographic, on Flickr
Forum: Pentax Medium Format 07-09-2014, 03:45 AM  
Z ISO 51,200 for stars this morning
Posted By nightfly
Replies: 7
Views: 1,593
I would like to see how this camera fares with even longer exposures with an equatorial platform. I'm not so much interested in the foreground, but how this camera depicts the Milky Way and its starclouds. This image shows great potential for astrophotography over the D model. Thanks for doing this initial work to give us a taste of what the Z can do.
Forum: Pentax Medium Format 06-17-2014, 09:55 AM  
medium format lens on a full frame camera
Posted By nightfly
Replies: 14
Views: 3,403
I use several 6X7 lenses on my K-5IIs with good results. The 75 f/4.5 Takumar easily resolves the full pixel resolution of the sensor, and wide open no less. The 55 and 105 are similar in this regard, but the 75 totally lacks in CA problems. The SMC 67 200 f/4 does very well when used in this manner as well. Sharp enough for digital, but made for 6x7 film. A bit awkward to use, but if you already own a 67 system it's worth the cost of an adapter and try them on. Good luck.
Forum: Pentax K-5 06-17-2014, 03:27 AM  
K-5 For Astrophotography
Posted By nightfly
Replies: 1,090
Views: 260,632
I'l seeing lots of nice work on these pages. The K-5 holds its own in the canikon world with the competent photographer.

I'd like to do more traveling once I get a 0-GPS1, but here is my front yard where I have a permanently mounted equatorial. Airglow was pretty intense the morning of the flopped Camelopardalids. Here is 2 minutes f/2.8 with the Samyang 16mm f/2 @ ISO 1250.

The Milky Way Veiled in Airglow by Nightfly Photographic, on Flickr
Forum: Pentax Price Watch 05-26-2014, 03:32 AM  
Adorama "lowest price online" memory card & HDD deals
Posted By nightfly
Replies: 13
Views: 2,777
Sandisk SDHC Class 4.

:lol:
Forum: Pentax Price Watch 05-24-2014, 07:00 PM  
Adorama "lowest price online" memory card & HDD deals
Posted By nightfly
Replies: 13
Views: 2,777
I just picked up this offer. The Samsung 32GB SDHC's work fabulous in my K-5 IIs. Performs like an entirely different and faster camera. A great bargain. It came with the free SD hard case storage and Flashpoint card reader. Bonus!
Forum: Lens Clubs 05-18-2014, 08:53 AM  
Takumar club
Posted By nightfly
Replies: 15,882
Views: 2,875,142
75mm F/4.5 SMC Takumar 6X7 on a K-5 IIs

The magnificent Takumar 75. Made for medium format, plenty sharp for DSLR's. Oh and wide open BTW.

Deep Spring by Nightfly Photographic, on Flickr
Forum: Pentax K-5 05-18-2014, 04:39 AM  
No more tests! just pictures
Posted By nightfly
Replies: 7,853
Views: 1,215,555
Signs of Life

The Maine Woods. Spring is in the air. With our eyes starved of green after a long winter, dig in!  Walking in the woods with my K-5 and SMC 67 105MM f/2.4. Medium format lenses good enough for cropped sensor digital? I think so.

Signs of Life by Nightfly Photographic, on Flickr
Forum: Pentax DSLR Discussion 05-03-2014, 06:52 AM  
Astrophotography
Posted By nightfly
Replies: 1,132
Views: 248,220
A few from this morning. Skies were pretty dark in the early AM with SQM (Sky Quality Meter) readings around 21.6 mags/sq-arc-sec at the zenith.

Pentax K-5 IIs and Samyang 16mm f/2

90 Seconds @ f/2.4 ISO 1600

The Great Sagittarius Region by Nightfly Photographic, on Flickr


240 seconds @ f/2.8 ISO 800

The Great Rift in the Summer Triangle by Nightfly Photographic, on Flickr
Forum: Troubleshooting and Beginner Help 04-24-2014, 06:13 PM  
Strange thing with Samyang 16mm
Posted By nightfly
Replies: 26
Views: 3,002
Just checked my recently purchased Sammy 16 and found true infinity to be right on the mark precisely. I recall my previous copy had decentering issues and focused prior to the infinity mark like the OP has stated.

Stars are sharp at full aperture by setting directly on the mark although a tweak under zoomed focus would be worth a check in critical applications.
Forum: Lens Clubs 04-21-2014, 06:31 PM  
the Samyang Lens Club
Posted By nightfly
Replies: 818
Views: 173,769
One advantage of the ultra fast Samyang 16mm F/2 is its almost stop action capabilities in the dark. Sharpness and vignetting are well controlled in this full aperture test in deep twilight. Eight seconds at f/2 using ISO 2000. Visually, the sky was much darker than seen here. My copy seems sharpest from f/2 through f/4 and very good from f/5.6 to f/8. Uniform sharpness is great by f/4. True infinity is right on the mark and was set manually for this shot.


Night Contrail by Nightfly Photographic, on Flickr
Search took 0.01 seconds | Showing results 1 to 25 of 241

 
Forum Jump


All times are GMT -7. The time now is 05:06 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