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Forum: Mini-Challenges, Games, and Photo Stories 21 Hours Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
I would say yes. I use my stuff in the elements all the time although frost is my big issue of late. I bought it to use it
Forum: Pentax Film SLR Discussion 21 Hours Ago  
Best K mount camera for M42 Takumar
Posted By MossyRocks
Replies: 19
Views: 397
I would say go get another spottie if you want to stick with film. They can be had for a song and I frequently see ones sold locally around me for $25 to $30 often with a 55mm f/1.8 body cap included.
Forum: Mini-Challenges, Games, and Photo Stories 23 Hours Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
I never said it wouldn't be fun, only a challenge. On the way into work I had a sideways idea of how to accomplish this, now to find the time to give it a try.
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
This will be a hard one this week being winter with everything snow covered and a cloudy week ahead.
Forum: Mini-Challenges, Games, and Photo Stories 1 Day Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
My safety shot. Dakota county CR46 (160th street)
This area is where the old DuPont Munitions plant was during WWII. There is very little left now as every few years some other feature is removed. What we have here are what is left of the old powder houses where the primers for 20mm and larger munitions were installed.


A fairly heavy crop taken with the S-M-C 17mm Fisheye Takumar and K-3ii
Forum: Lens Clubs 1 Day Ago  
300mm plus Lens Club: discuss your long lenses
Posted By MossyRocks
Replies: 32,746
Views: 3,122,450
If you keep this up I will really end up in trouble with the wife. She wasn't all that happy about the acquisition of the 400/2.8 last year.
Forum: Pentax Camera and Field Accessories 1 Day Ago  
Lens wrapping tape.
Posted By MossyRocks
Replies: 14
Views: 469
I second that. What is the purpose of that thing?
Forum: Mini-Challenges, Games, and Photo Stories 3 Days Ago  
Thematic Year End Review: Your Favorite Photos of 2019
Posted By MossyRocks
Replies: 60
Views: 1,537
I missed that post but upon your mention of it did read it, thanks. I think I will have go and get out the big LED shop lights (dual 10,000 lumen ones) when I give it a try next (maybe later today or tomorrow) and really throw some light as I don't have a strobe.
Forum: Pentax Full Frame 3 Days Ago  
New K-1 Owner
Posted By MossyRocks
Replies: 14
Views: 538
I think this thread was born that way. We haven't yet descended into a deep discussion of how many stops/bits below the shot noise do things like amp glow and dark current show up or other such topics so we haven't completely nerded out this thread.
Forum: Pentax Full Frame 4 Days Ago  
New K-1 Owner
Posted By MossyRocks
Replies: 14
Views: 538
Well it would be 1/8 of a second or .125s not .8 seconds. Having only played a bit with PS on my newly acquired K-3ii I would think that the the FPS wouldn't apply as you don't have to deal with the mirror and shutter moving. However last night I played a bit and it seems like it takes close to a second for it to complete a PS shot even when using a fast shutter speed like 1/250s. Granted I was listening for the mirror and this was by no means a proper scientific endeavor but my experience now would seem to indicate that this is less possiable. However sticking a 50mm on the camera and doing a pixel shift shot of the moon would clearly work, but beyond that there may be issues. Now I really have to haul the 400 out to test it.
Forum: Pentax DSLR Discussion 4 Days Ago  
Cold weather testing the K-30
Posted By MossyRocks
Replies: 11
Views: 397
30 seconds with astrotracer. The D-LI90 held up fairly well. I got about an hour of usage before having to swap it out. I think the higher draw helps since the internal resistance of the battery will help warm it up some.
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Thematic Year End Review: Your Favorite Photos of 2019
Posted By MossyRocks
Replies: 60
Views: 1,537
Having tried to do some snowflake shots previously and not gotten anything as nice as this I am curious about your technique. You say handheld focus stack so do you just put the camera in burst mode and blast away or how does that work? Did you use live view? Yes I did go and read the captions over on flickr.
Forum: Pentax Full Frame 4 Days Ago  
New K-1 Owner
Posted By MossyRocks
Replies: 14
Views: 538
And that is what I get for not paying attention to the original posters. You've seen my 400mm moon picture before over in the astro group and know all about nailing the focus. However now I wonder if it would be possible to do a pixel shift moon shot with the K-3ii and SMC A* 400. It seems like it would be possible to keep the moon movement under one pixel for the duration. I usually use 200/(focal length) as the rule for trail free astro shots without any tracking but I ran across one person who did the math and they came to the conclusion that 70/(focal lenght) gives a true no movement shot. So lets make the math easy, simple and more conservative and use 50 instead of 70 so that means I would have to get 4 samples in 1/8 seconds which seems in the realm of possibilities as I was using shutter speeds substantially faster than that and got an overexposed image. I should be able to run the lens at f/3.5, 1/640s and ISO 100 to see if things work well.
Forum: Pentax Full Frame 4 Days Ago  
New K-1 Owner
Posted By MossyRocks
Replies: 14
Views: 538
You won't need astro tracer for the moon. Even at f/8 you will have plenty of light. Start with f/8, ISO 200 and 1/400s off of a tripod and go from there. Focus is key for the moon so figure out how to nail the infinity focus. I suggest using a bahtinov mask to do it and there are generators for them available. Basically let your long glass come to temperature to avoid things from shift from contracting as it cools, point it at a bright star and get the focus pretty good through the view finder, then go into live view and minimize the star as best you can with focus peaking off. Finally toss the bahtinov mask in front of the lens and do the fine adjustment to get it perfect. I can get my 400mm focused this way in under a minute with most of the time spend getting and keeping the bright star centered.

I should probably do another moon shot with my big 400 now that I know it better. Here is what I managed (tight crop) on the first time I had my 400 out (with a 500 on full frame yours will be smaller but not a lot) and this is overexposed with as much recovery as I could manage.

K-3
Lens: SMC A* 400mm f/2.8 ED [IF]
f/4
ISO 100
1/320s
Forum: Pentax Full Frame 4 Days Ago  
New K-1 Owner
Posted By MossyRocks
Replies: 14
Views: 538
Do a pixel shift shot off of a tripod to be even more impressed. That was the first thing I did last week when I picked up a K-3ii.
Forum: Pentax DSLR Discussion 4 Days Ago  
Cold weather testing the K-30
Posted By MossyRocks
Replies: 11
Views: 397
Your experience mimics that of mine last winter (out in -35F) doing astro shooting with the K-3 and old sigma 300. My only advise beyond yours is to stick it all in a big zip-lock bag before heading it that way you don't have to play with frost on the front element or condensation upon reentering a warm place. We don't normally get that cold and it has been a very mild winter so far with the coldest nights only getting down to around -10.
Forum: Mini-Challenges, Games, and Photo Stories 5 Days Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
At first it looked like the sign had taken a load of bird shot but it is screws, lots of screws.
Forum: Photo Critique 5 Days Ago  
Nature The Big Mushroom
Posted By MossyRocks
Replies: 5
Views: 199
I am mostly using RawTherapee and/or Darktable. I haven't worked much with Darktable staying mostly in RawTherapee so maybe. Things like that I would usually try to do in GIMP.
Forum: Mini-Challenges, Games, and Photo Stories 5 Days Ago  
Game The weekly random-subject challenge!
Posted By MossyRocks
Replies: 38
Views: 796
And now I've figured out a safety shot for the week. Time to head down to 160th street tonight or tomorrow. The other option for me I know I wouldn't be able to get my car out this time of year and even if I still had my jeep that would probably end up stuck too.
Forum: Mini-Challenges, Games, and Photo Stories 6 Days Ago  
Thematic Year End Review: Your Favorite Photos of 2019
Posted By MossyRocks
Replies: 60
Views: 1,537
Well I really only have 3 shots that really stand out in my mind as being my favorites and best. I am a bit late but someone suggested that the big lens people post some here so why not. Although I do go wide too, really wide.

This is probably my favorite. The Great Orion Nebula and Running Man.
123 twenty second shots (astrotracer was used) stacked
K-3, SMC A* 400mm f/2.8 ED [IF], ISO 1600, f/3.5, 20 seconds each



Up next would have to be my second favorite one of the illuminated oak tree off of I35 just south of Faribault MN.
K-3, SMC A 50 f/1.2, ISO 100, I think they were 4 second exposures, f/5.6. It is a stitched panorama and the full size image is just over 24,000 pixels wide



Finally there is the giant mushroom that was 5 inches across. I just like it
K-3, Sigma 300mm f/4 APO Macro, f/8 1/8s ISO 100
Forum: Photo Critique 6 Days Ago  
Nature The Big Mushroom
Posted By MossyRocks
Replies: 5
Views: 199
That is one of the things I have thought about but want to preserve the greens elsewhere so is something that I've played with some but haven't mastered yet.
Forum: Lens Clubs 6 Days Ago  
300mm plus Lens Club: discuss your long lenses
Posted By MossyRocks
Replies: 32,746
Views: 3,122,450
A giant mushroom that is about 5 inches across shot last may. While not the biggest in the group it was the most photogenic the biggest one was about a foot across. It just rained all weekend and had rained consistently for a few days previous as well so the colors were super saturated everywhere in the woods.

K-3
Sigma 300mm f/4 APO Macro
ISO 100
f/8
1/8s
Forum: Photo Critique 6 Days Ago  
Nature The Big Mushroom
Posted By MossyRocks
Replies: 5
Views: 199
Looking for a general critique of this. I did reprocess it again more recently and I like that one better but wondering what people think about this one. This mushroom was huge at about 5 inches across but was one of the smaller ones in the group growing on the fallen tilted tree trunk, the largest being close to a foot across.. I actually toned down the saturation some but it was an overcast drizzly day and had been raining for several days at that point in early may so things in the woods were just super saturated.

Forum: Lens Clubs 6 Days Ago  
300mm plus Lens Club: discuss your long lenses
Posted By MossyRocks
Replies: 32,746
Views: 3,122,450
Almost like a glamour shots for birds.
Forum: Troubleshooting and Beginner Help 6 Days Ago  
Can I use a 1G SD card to upgrade firmware on an old ist DS?
Posted By MossyRocks
Replies: 6
Views: 381
I don't see why it wouldn't work. A 1GB card would be a standard SD card which should be supported by everything that reads SD unlike SDHC or SDXC cards. This assumes that the old SD card still works and hasn't worn out which can happen.
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