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Forum: Monthly Photo Contests 04-14-2018, 12:45 AM  
Lady Hummingbird
Posted By rasputin
Replies: 7
Views: 252
Thank you!
Forum: Monthly Photo Contests 03-06-2018, 08:01 PM  
Lady Hummingbird
Posted By rasputin
Replies: 7
Views: 252
A friendly little lady hummingbird on a late winters day.
Forum: Monthly Photo Contests 02-01-2017, 07:16 PM  
Contemplation
Posted By rasputin
Replies: 8
Views: 363
A lovely autumn day in Lithia park. Ashland, Oregon.
Forum: Monthly Photo Contests 06-01-2016, 08:55 PM  
Electro Funk Daddy Break
Posted By rasputin
Replies: 1
Views: 340
Reflections, refractions, distortions and transparencies. Taken along and through a curved window on a warm spring day in Medford, Oregon.
Forum: Pentax SLR Lens Discussion 01-04-2015, 12:43 PM  
MTO Lens Question
Posted By rasputin
Replies: 13
Views: 8,686
Thanks, redpit, for your in-depth story about this lens. I actually like mirror lenses very much, and your photo's show exactly why. In certain situations they simply outperform traditional tele-photo and long lenses. While many people consider the donut bokeh to be unattractive, in certain situations it can create very artistic images, which are very pleasing to the eye. My first mirror lens was a 600mm sigma. It had very poor image quality, but was fun to use. I sold it and purchased a Soviet 3M-6A 6.3/500mm, manufactured in 1984 at the Lytkarino factory. It simply blew away the sigma. But, just like fast car entheusiasts, I need more power! I've tried using this lens with a doubler, but the results were less than satisfactory. I am looking into getting the MTO-1000, thanks to your report. I also enjoy shooting with old lenses, as in many aspects they are far superior to modern lenses, and while they can be a bit unweilding, they are fun to play with. I have found, through experience, that the older Soviet lenses manufactured by KMZ often have superior optics, especially those marked with the red P (it looks like an upside down U in English letters). Finding one in good condition is the real problem, since they are so old and usually well used.I have several of these lenses, from the late 1950's and early 1960's, and I love the images they render. I have also read that the models with "00" at the beginning of the serial number are also superior. I have owned about twenty or so Soviet lenses of various design, and this always seems to hold true. Apparently, each lens is tested in the factory, and the ones which had the best results were set aside for dignitaries, and military use, and marked with the "00." The one's marked with "000" were prototypes and should be avoided if you plan on using them. They are quite prevalent on the used market, and often in near new condition. These lenses often have improper coatings, or other anomalies, which is why they weren't sold. The rest of the lenses to be sold are marked first with the year of manufacture. So, for example, if the serial number started with "84," it was manufactured in 1984. Someday, I plan on writing a full article on these fantastic lenses so all of us Pentax Forums members can see how well these lenses work with our wonderful cameras. I have a Pentax K5IIs, and I recommend it highly, as the 16MP sensor is a fantastic one, and not having the AA filter helps it take significantly sharper images than the K5. If you like shooting manual, like I do, it is all you need, and can be had for a song these days. In closing, I am posting an image I took of last year's blood moon with my K5IIs and the Soviet 3M-6A, and an aftermarket doubler. I used a heavy tripod, a remote trigger, and shot with the mirror up. The atmospheric conditions were not ideal, but I was still somewhat pleased with the results. It's still not sharp enough for me, most likely due to the atmspheric conditions, the doubler, and the cropping.
Forum: Pentax Full Frame 12-15-2014, 12:38 PM  
Why Pentax SHOULD make a full frame, an answer to the link on homepage
Posted By rasputin
Replies: 302
Views: 21,746
As much as I hate to say it, I think I've been waiting in vain. Full frame is a format that was carried on over years because of the need for a universal format for film manufacturing. Nowadays, it doesn't matter at all. They could manufacture sensors in any size or format they desire, and photoshop and other processing engines will have no problem processing them. A full frame camera will have a few advantages and a few disadvantages, but other than maximizing the whole field of view from the larger lenses, which Ricih/Pentax no longer manufacture, the sensor size really isn't overly important. High quality photo's can be made with any camera, and as digital imaging technology advances, sensor size becomes less and less important, even for enlargments. I can already make near poster size enlargments with no signs of pixelization with my camera. I think any camera manufacturer is banking on selling lenses and accessories for their profits, the camera just opens the door. I've been thinking of getting the Sony A7r since I have so many old lenses I love to shoot with. They are all m42, so they work with my current camera, a k5IIs, but I would like to catch the beautiful abberations created by those old lenses in full frame. That is the only reason I want one. But, the Sony camera is very akward and clumsy, it's too small, doesn't balance well in your hand once a large lens is attached, and isn't nearly as rugged a the Pentax. I love the way my K5IIs feels in my hand. I like the size, the weight, and the fact it's water and shock resistant. It simply blows the competition out of the water. The problem for Ricoh is the fact they don't advertise and most people have no idea they manufacture a superior camera at a lower overall price. What we need to think about is what will come in the future, and that is predicated by what young photographers are willing to spend their hard earned money on, not the dreams of old codgers like me. I love DSLR's, but sadly, I see the mirrorless market dominating the market very soon, so if Ricoh/Pentax eventually does come out with a FF, I predict it will be mirrorless. A mirrorless camera should also be less expensive for them to manufacture, once the tooling is made. I still have my fingers crossed. I would love to have a full frame Pentax DSLR!
Forum: Pentax Full Frame 09-08-2014, 07:26 PM  
Why Pentax SHOULD make a full frame, an answer to the link on homepage
Posted By rasputin
Replies: 302
Views: 21,746
I have a K5IIs and I love it. Except for the sensor size it is a fabulous camera. The lack of an AA filter was a great move by Pentax, and I can finally get the clarity out of a digital camera that I always wanted. I shoot mostly with old Carl Zeiss Jena and Russian lenses from the 1940's and 50's. Pentax is the only manufacturer who's register distance is compatible with these old lenses. Some of them have fantastic abberations, the kind of things you can't find in newer lenses. They also have the benefit of round aperture blade assemblies which provide spectacular backgrounds and bizzarre bluring, something that can only be acheived wide open on a modern lens. Unfortunately, the tiny APS-c sensor misses much of the wonderful background abberations, and of course, I can't enlarge or crop them as much. I've been waiting for a long time for Pentax to make a FF body so I can use these classic lenses to their fullest. I realize I am not the kind of photographer Pentax is aiming for because I won't be buying all the new lenses and accessories. Still, from an artistic perspective, Pentax would be doing the world of photography a juge favor by introducing FF body.
Forum: Monthly Photo Contests 09-08-2014, 07:00 PM  
Ashland sun
Posted By rasputin
Replies: 2
Views: 370
This shot was taken in August of this year in the city of Ashland, Oregon using an old Carl Zeiss Jena 5.8cm Biotar from the early 1950's, the 17 blade version. I also used a B+W Kaesemann CPL filter stacked with a B+W KB 1.5 filter. My camera is a Pentax K5IIs. The skies were a bit tinted from forest fire smoke in the distance.
Forum: Pentax K-3 Photo Contest 04-28-2014, 10:05 PM  
Abstract reflections of a lotus
Posted By rasputin
Replies: 2
Views: 637
A beautiful white lotus flower, its reflection, its shadow, and nestled inside the lovely petals, a dead fly on it's back. :eek:
Forum: Post Your Photos! 04-15-2014, 05:05 PM  
Sticky: How to upload / link photos - BEGINNERS START HERE
Posted By rasputin
Replies: 191
Views: 182,852
This was taken in Ashland, Oregon. I used my Pentax k5IIs and a 500mm 3M-6A Russian mirror lens. It was a fun night, watching the moon change, and hearing the hippies in the park howling at the moon like a pack of stoned coyotes.
Forum: Pentax SLR Lens Discussion 04-13-2011, 08:04 PM  
Pros/Cons of using medium format lenses on Pentax DSLRs?
Posted By rasputin
Replies: 49
Views: 19,937
I'm no pro but here are a few +- that I can see.
A medium format lens is much larger than the sensor in a dslr needs so it will only use the inner portion of the glass. The result is more size and weight than needed but you will see much less vignetting. Because it is larger your pop up flash may not be high enough to get over the lens leaving an arcing shadow.
I like a heavier lens, it's easier for me to keep still. Also some of these MF lenses are made from very high quality glass which gives a different image than polycarbonate, some people prefer this. Because they are so large lens coatings become even more important. Also, unlike a dslr lens these can be adapted for tilt/shift photography as well as other fun projects. As always, quality is key, so a cheap MF lens will be just that.
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