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Forum: General Talk 3 Days Ago  
I don't know to laugh or cry...
Posted By gaweidert
Replies: 54
Views: 2,518
Lower speed film was used. Background radiation would fog the film in a relatively short time. Higher ASA film would have made the problem worse. Even on Earth, films with ISO of 1,300 or so have a very short shelf life. Space is a very hostile environment for film. Film was stored in special canisters until use and then returned as soon as possible after exposure.


The cameras used were slightly modified off the shelf Hasselblads. A few of the moving parts were made of materials not affected by extreme temperature changes and all lubricants were removed so that they did not freeze of boil off. Something that could happen if the astronaut just turning around moving the camera from shade of his own shadow to sunlight.


The returned film was treated like the most precious object in the universe. A small strip of film was taken from each roll for testing to determine exactly what processing parameters would work best for that particular roll. Then the processor was set up to deliver the optimum image for that particular roll. Then the chemistry was dumped, the processor cleaned, and inspected to insure that it was good for another roll. New chemistry was then added and seasoned. This was repeated for each roll of film. Processing for some of the rolls had to be heavily customized to get usable results. A heck of a lot of work went into the photos you eventually got to see in National Geographic Magazine.
Forum: Pentax K-1 4 Days Ago  
Post your K-1 pictures!
Posted By gaweidert
Replies: 22,805
Views: 1,912,268
Is that the train where the Finns bugged Adolph Hitler when he visited Marshal Mannerheim?
Forum: General Talk 5 Days Ago  
Your latest de-acquisition
Posted By gaweidert
Replies: 332
Views: 21,431
You were lucky that some guys in long ships did not come ashore and deacquisition you of everything else.
Forum: Pentax K-3 5 Days Ago  
why I won't buy a k3 (Warning: Satire Thread)
Posted By gaweidert
Replies: 62,840
Views: 2,180,388
Feeling a bit nostalgic this afternoon. Though I'd post this. My brother in law grew up with Lou Grammatico (AKA Lou Gramm). They even played in a band together in their teen years. He once that that even back then he had a heck of a voice and knew that he was going to be in a rock band. Lou just announced his retirement a few months ago. Here's to you Lou and thanks to Foreigner for the great music.


















You Tube



Forum: General Photography 5 Days Ago  
How good is 1.5 megapixels? It is this good.
Posted By gaweidert
Replies: 15
Views: 838
There was a system to do this, but it is all a question of interfaces and storage technology. He had to rig an interface to the unit that would work with current technology. Back then 3 1/2 floppy had replaced 5 1/4 inch floppy and 100 meg hard drives were the norm.


The real problem with digital imaging is lack of any archival storage system. Archival spec processed B&W and Kodachrome (no longer available) films are the images that are going to last a century or longer. These will work no matter what the then current capture technology will be. How many people on this site even have the capability of reading a 3 1/2 floppy disc any more? I had to get a stand alone DVD drive to set up the computer I am using to type this. Handwritten material such as letters, cards etc will be even more rare as they are simply not done in the volume that they used to be.
Forum: General Photography 5 Days Ago  
How good is 1.5 megapixels? It is this good.
Posted By gaweidert
Replies: 15
Views: 838
I am a member of a few firearms forums. I lifted these images of one of them. The person who used this camera purchased it used for $60 and, to his everlasting regret, sold it a few years later. Original price was $10,000 US in 1994. He jury rigged a way to get the images off of it. I found one of images he showed pretty impressive.


There were taken with the Nikon/Kodak DCS 420 camera. The unit came out in 1994 or so. They were used heavily at the Winter Olympics in Lillehammer, Norway that year providing newspapers around the world with images only minutes old. Kodak even did a 60 foot long Times Square Colorama using this camera. Only old timers will know what this was.


I remember seeing trays of these cameras at Kodak. Nikon would send the camera bodies to Kodak and the digital backs would be added there. First the camera, and then an image from it.
Forum: Pentax News and Rumors 6 Days Ago  
CP+ interview question suggestions
Posted By gaweidert
Replies: 129
Views: 6,552
Will full frame teleconverters be available by May of this year?
Forum: Pentax Camera and Field Accessories 02-14-2019, 05:14 PM  
Testing Batteries?
Posted By gaweidert
Replies: 18
Views: 659
My Powerex 8 slot AA/AAA smart charger works great to recondition batteries while in the slow charge mode. It has brought a few AA batteries back to life.


The Pentax batteries I use are nice because they have a date of manufacture on them. For the third party batteries I have had good experiences using the Watson batteries from B&H. Kapaxen batteries not so much. But the chargers were cheap and work fine. Add a small label with date of purchase to third party batteries.


My AA batteries I keep in clear cases that hold 4 batteries each. If the batteries are fresh and not used they are all aligned the same direction in the container. If I have used them and then removed them because I don't plan on using that item soon, I alternate the direction in the case. It I have the time, I always use the slow conditioning charge rather than the fast charge to help extend battery life.


With my camera batteries, charged batteries are placed in a pouch contacts down. Batteries needing charging are placed in their pouch contacts up. FWIW, I never get anywhere close to the rated number of shots per battery on my camera. Totally due to the way I use the camera and not the camera's fault. I use Think Tank and Lens coat battery pouches for my camera batteries. Handy, can be worn on a belt or camera strap and take up little room in my camera bags.
Forum: Pentax K-3 02-14-2019, 10:40 AM  
K3 sample shots ... post here !
Posted By gaweidert
Replies: 10,146
Views: 1,212,901
Keep on posting Carol. I need to see shots from the mountains. Still trying to convince my wife to move out that way, She is retiring at the end of next month.

I have the Tamron 70-200 f2.8 lens too. It may be the best bang for the buck in Pentax mount lenses. Owning one I certainly cannot justify getting the Pentax version. It is certainly not over 2 times better than the Tamron. I am very happy with mine.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 02-13-2019, 06:08 AM  
Old (very old) Kodak "autographic" camera -- how do I open this thing?
Posted By gaweidert
Replies: 13
Views: 408
Film is still pressure sensitive but you are right the effect is not a great today, Today's film has smaller silver halide (AgX) crystals so the effect is less. As someone who used to be a QA engineer for several of Kodak's film processors, pressure marks were just one of the many things that you had to be aware of. Camera designers still need to be aware of it too.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 02-12-2019, 07:30 PM  
Old (very old) Kodak "autographic" camera -- how do I open this thing?
Posted By gaweidert
Replies: 13
Views: 408
It seems that yours still has the stylus. The reason that hey were called Autographics was that you could lift the little door on the back of the camera and "write" on the negative. Film is also pressure sensitive. People could take the photo and then write a brief note about it. Same thing that you do with a stylus on a tablet. If you opened the door you would see the light proof backing paper so the film would not get fogged.
Forum: Pentax K-3 02-11-2019, 06:07 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By gaweidert
Replies: 62,840
Views: 2,180,388
We don't shoot each other for this. We just build a bigger snowblower and send it back with interest. In this case revenge is truly a dish best served cold. Meanwhile our wives just look up and say "That's nice dear." They they get back to whatever they were doing. Hopefully making bacon wrapped bacon sandwiches while playing flaming bagpipes.
Forum: Pentax K-3 02-09-2019, 06:06 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By gaweidert
Replies: 62,840
Views: 2,180,388
Actually is a based upon a big block Chevy engine. That puts it in the 8 liter range. Tracks move independent of each other for steering and it just looks a lot cooler. I think the flames on the drift cutters are cool too. Whatever, it is good that we still have clever people like these two guys around. In the US we call it Red Neck engineering.
Forum: Pentax K-3 02-09-2019, 05:43 AM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By gaweidert
Replies: 62,840
Views: 2,180,388
This guy in Canada beat him by 4 years. Much more impressive too. It has tracks like a tank and can throw snow some 40 meters or so.

















You Tube



Forum: Pentax K-3 02-07-2019, 05:22 PM  
why I won't buy a k3 (Warning: Satire Thread)
Posted By gaweidert
Replies: 62,840
Views: 2,180,388
Yes it is. It is the reason he will not buy a K3.
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 02-07-2019, 09:22 AM  
Olympus OMD EM1X coming in January.
Posted By gaweidert
Replies: 224
Views: 10,738
The more I see about this camera the more I like it. If I was just transitioning to digital I would give this system a long hard look.
Forum: General Talk 02-06-2019, 01:54 PM  
Your latest acquisition
Posted By gaweidert
Replies: 15,435
Views: 1,033,573
Fed Ex stopped by today with two boxes from B&H Photo

Item of the first part - External microphone for my Panasonic FZ1000
Item of the second part - Extra battery for said camera.
Item of the third part - Vello cable release for said camera. I have had good luck with these. Can't beat the price.

Item of the fourth part - Vello screen shade for said camera. Fits like a glove.

Item of the fifth part - E-Image GH03 fluid head. - much bigger than I thought but I'll live with it for the price. Seems to work as advertised.


Now to wait for the freezing rain to stop so I can go out and practice a bit of video. No idea what I am doing but just an old dog trying to learn a few new tricks.
Forum: General Talk 02-06-2019, 08:17 AM  
Oh Oh Alternative plans must be made
Posted By gaweidert
Replies: 15
Views: 681
Not to worry, I read a company statement that they will be back next year.
Forum: Troubleshooting and Beginner Help 02-06-2019, 06:06 AM  
K-1 camera shake issue
Posted By gaweidert
Replies: 31
Views: 1,315
Mirror slap is an issue with FF DSLR's. Not just Pentax. I stay below1/80 of a second and try to keep my shutter speeds at 1/250 second or faster.


You could also try the electronic shutter to see if you still have the issue too.

My K1 did not have it at first, but it did develop the problem after a few hundred exposures. I just work around it. My K1-II has been free of the issue so far. I use a D FA 28-105 lens on mine and that combo seems to hit the sweet spot for the issue for me.
Forum: Pentax News and Rumors 02-05-2019, 03:16 PM  
No sign of Ricoh/Pentax at the UK's biggest camera fest.
Posted By gaweidert
Replies: 107
Views: 6,275
If Ricoh were to announce a new camera right now, it would be spread worldwide within 30 minutes. Trade shows were places where manufacturers could talk to the media and the media could spread the word. No need for that anymore. If one were to pick up an issue of Wired or Time magazines and compare them to what they were 20 years ago they would be shocked. It is all part of the same reality.
Forum: General Talk 02-05-2019, 11:45 AM  
Your latest acquisition
Posted By gaweidert
Replies: 15,435
Views: 1,033,573
Buuuuuuuuuuuuuuuuurrp! AAAAAHHHHHHHHHHHHHHHH!!!!!! :)
Forum: Pentax Camera and Field Accessories 02-05-2019, 11:40 AM  
Pouch for filters
Posted By gaweidert
Replies: 13
Views: 558
I have an Adorama Slinger that can hold filters up to 82mm. It can mount on your belt or even on the strap of your camera bag. I got it when I got my D FA 15-450 almost 4 years ago. Can't remember if I ordered it or it was a freebee with the lens.
Forum: General Talk 02-05-2019, 11:24 AM  
Your latest acquisition
Posted By gaweidert
Replies: 15,435
Views: 1,033,573
.0

You may want to try Oreo Thins for a standard. Being flat on both side they stack better. I'd post a photo, but, well, you know how it goes. :eek:
Forum: General Talk 02-04-2019, 08:50 PM  
Who will offer to watch feature films about photographers?
Posted By gaweidert
Replies: 40
Views: 881
Watched that movie on Netflix. I enjoyed the movie as it brought back a lot of memories for me. I was hoping that they would show the equipment. I worked on the project that developed the Kodachrome "minilab" to make Kodachrome processing more readily available.


If you have ever made an image using the dye sublimation process that will give you and idea of how complex the Kodachrome process was.
Forum: Pentax K-1 02-04-2019, 04:31 PM  
Post your K-1 pictures!
Posted By gaweidert
Replies: 22,805
Views: 1,912,268
Welcome aboard. Great first posting.
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