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Forum: Pentax SLR Lens Discussion
05-19-2017, 05:51 PM
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Thanks guys. I think i'm in the ballpark. Went down tonight by the sea, but didn't have an extra rear lens cap, and didn't want to take off the 24mm and leave it stranded. Trying to formulate some discipline. Plus, I don't think the meter in the k1000 is very accurate. It doesn't believe in Sunny 16.
But I needed a roll of film to practice developing. It's been since around 1980 since I developed any film.
I think I want to try out more things, Just a little more.
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Forum: Pentax SLR Lens Discussion
05-11-2017, 04:37 AM
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Thanks guys.
It's just practice and playing around. Looks pinhole application does need to be very accurate Thanks for starting me off on the right foot.
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Forum: Pentax SLR Lens Discussion
05-10-2017, 10:10 AM
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Beautiful! i emailed the ebay seller who makes these, fireseller66, and this is what he said:
The focal distance is 49mm f163 for a 0.3mm aperture. I have to go though an update some listings
Best
Tim Page
His body cap is raised a little from the mount, but it sounds like he is in the ballpark. Should I use his f/163, or is that too far?
Also, just found on B&H some caps that are closer to the film plane.
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Forum: Pentax SLR Lens Discussion
05-10-2017, 08:12 AM
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I am curious to know what the f stop is for the pinhole lens cap adapter for my camera, or any camera. I just bought one. a Pentax k mount body cover drilled to 0.3mm, but don't know the distance from film plane to the hole (or focal length). I understand that f stop = focal length/diameter.
I am gonna use it today and am guessing at f/166. i just emailed the guy who made the pinhole cap, and he might know. If he lets me know i will answer my own question but keep it posted.
I am assuming, from guessing from haphazard internet search that the distance in question is about 50mm.
Is the distance from sensor/film plane different for different cameras. I have another medium format camera on its way and it is f/250.
Any and all help is appreciated.
Pat
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Forum: Pentax K-70 & KF
01-28-2017, 03:57 AM
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I am blown away by my 3200 and 6400 pictures. No other camera of mine has ever had such decent pictures at from those big numbers. Sure, above 25,600 you only get internet quality snapshots, but my other cameras, my older ones, only made questionable snapshots at their higher ISOs. I bet the KP follows the same logic and caveats.
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Forum: Pentax K-70 & KF
12-27-2016, 08:15 PM
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I am newly back to Pentax with my very recent Xmas K-70, and looked high and low for a book. I hoped one would come along soon. Heard the news tonight. Tried a sample. Bought and downloaded it five minutes ago. I'm a happy camper. From just what I've seen tonight this looks like a good book. No, a great book. I love the writing style, because if feels honestly friendly. Neither intimidating nor condescending, but well researched from intimate experience. I just read about not having to buy neutral density filters by using the multiple exposure technique, and this new trick almost brought me tears of gratitude for this book. Thank you Yvon.
Can I got to Kinko's or Staples and get this printed and bound? Any suggestions or is it pretty straight forward. I'd like it Kindle format, also.
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Forum: Pentax K-70 & KF
11-25-2016, 03:45 AM
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All of the pictures taken of UFOs and Bigfoots use high ISOs.
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Forum: Pentax K-70 & KF
11-25-2016, 03:36 AM
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When I lived in Las Vegas, I was downtown in one of the real soul sucking parts of old rundown Lost Wages living in an SRO with a secure parking lot . One of my neighborhood crackheads stole my new stereo from my old Accord. The conscientious low-life unbolted it without breaking anything. He very carefully took his time and left me the hardware necessary for a re-installation.
I always think of that event with gratitude on a lot of levels. One of which is the idea that our possessions own us and amazed that the theft never bothered me. I am more apt to keep a grudge relentlessly replaying in my one-track mind because of a stranger's insult, fancied or real.
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