Cameras from local auction.
Nov 20, 2022 12:18:20 #
Yesterday I was at local auction and found two cameras and guided books on both cameras. Camera one: Minolta SRT 102 with Minolta 1:2.8 f=28mm lens. Minolta SR-T Guide by John C. Wolf. Camera works fine, one drawback is the cameras used mercury batteries. That no big deal for me using the camera use 16 rulers of light.
The other camera is a Petri Penta with Petri Orikkor 1:2 f=50mm lens. Petri Guide by Dr. Kenneth S. Tydings.
The big drawback is the camera is jam. I need someone who can fix the Petri Penta, I known no one in Northern New York that fix cameras. Now no one is going to belive this: I pay $5.40 for everything.
The other camera is a Petri Penta with Petri Orikkor 1:2 f=50mm lens. Petri Guide by Dr. Kenneth S. Tydings.
The big drawback is the camera is jam. I need someone who can fix the Petri Penta, I known no one in Northern New York that fix cameras. Now no one is going to belive this: I pay $5.40 for everything.
Nov 20, 2022 12:28:42 #
As a kid, I used to see advertisements in Sports Illustrated for the Minolta SRT 101 and 102. My tongue was hanging out!
Nov 20, 2022 12:46:04 #
Check, there may be a replacement battery.
PX625A (Alkaline)
PX625A (Alkaline)
Nov 20, 2022 13:35:49 #
Nov 20, 2022 14:03:18 #
Just Fred wrote:
I still have my Minolta SRT-101!
That is a great camera, as well as the 102.
I borrowed one one time when my camera was in for cleaning.
Nov 20, 2022 14:03:56 #
Since the replacement battery isn't mercury, there should be a minor exposure compensation, but I never got the amount.
Nov 20, 2022 14:13:02 #
PHRubin wrote:
Since the replacement battery isn't mercury, there should be a minor exposure compensation, but I never got the amount.
I found with my SRT-101 (I don't have the 102) changing the battery voltage does change the reading but neither would provide accurate meter reading. Also I found them to be non linear that is it needs different amount of compensation whether you use it in bright light or low light.
That's for the SRT. However, with the alkaline battery in the Canonet QL17 the meter is quite good.
Nov 20, 2022 18:58:27 #
therwol
Loc: USA
Longshadow wrote:
Check, there may be a replacement battery.
PX625A (Alkaline)
PX625A (Alkaline)
Alkaline batteries have a fairly steep discharge curve. As you continue to use them, the voltage drops, and that means the metering in a camera without a voltage regulator will change over time.
This battery adaptor will allow a commonly available silver oxide battery to be used in these older cameras. Silver oxide batteries have a very flat discharge curve, similar to mercury batteries. This adaptor also drops the voltage to the 1.35 volts of mercury batteries.
https://shop.criscam.com/products/mr-9-mercury-battery-adapter
Nov 20, 2022 19:12:40 #
Nov 20, 2022 19:58:19 #
therwol
Loc: USA
Longshadow wrote:
Interesting.
At some point, camera manufacturers started putting voltage regulators in their camera so that alkaline batteries would work fine, but just about anything made in the 60s or early 70s that used mercury batteries did not have a voltage regulator. My Nikon FTn has no voltage regulator. I have two of these adaptors. I haven't used the camera in a long time, but I'm prepared if I do, and it may increase the value to offer them if I sell it. One prominent UHH member whose specialty seems to be insects uses a Gossen Luna Pro meter instead of the meter in his camera. I sent him an OEM Mercury to Silver Oxide battery adaptor that I had lying around for his meter. He reported that it works perfectly.
Nov 20, 2022 20:10:35 #
Nov 21, 2022 07:37:25 #
Bigmike1
Loc: I am from Gaffney, S.C. but live in Utah.
My first good camera was a Petri green window range finder 35mm. I loved that camera and I still have it. Several years ago a friend gave me a Petri single lens reflex that was hung up. I decided to open it myself. I have never seen a more complicated mess. I couldn't get it back together and ended up just trashing it. This camera was electronic.
Nov 21, 2022 09:25:57 #
Sidwalkastronomy
Loc: New Jersey Shore
I have two Olympus OM 2 n film cameras. Too bad film and developing so expensive compared to digital. Kodachrome slide film was the best
Nov 21, 2022 09:47:35 #
StanMac
Loc: Tennessee
Bill 45 wrote:
Yesterday I was at local auction and found two cam... (show quote)
Consult with Zacks Camera Repair in Providence, RI about repairing the Petri. He refurbished a Petri rangefinder for me. Depending on what is jammed in the Penta, it is probably not be worth the cost to get it repaired. I know I paid way more than the Petri rangefinder was worth, but I like the cameras on my display shelf to be working models, not shelf queens.
Stan
Nov 21, 2022 10:07:57 #
Bill 45 wrote:
Yesterday I was at local auction and found two cam... (show quote)
You got robbed!
I would have never offered more than $5.00
Seriously, great buy. Enjoy your new equipment
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