How to use modern batteries on the Minolta SRT-101 (Alkaline or Silver Oxyde). Easy tutorial 

and just like that, minolta srt is ready for another 100 years of shooting photos.

Excellent! I’ve been making this very adjustment to my Minolta SRT series cameras for years now. Works great! Thanks!

Just inherited an excellent condition SRT101. Perfect video at the perfect time. Thank you.

Thanks, Dan. This video is very helpful. I bought an SRT 101 way back in 1969 when I was twenty. I loved it and regretted later trading it for something else. Last week I decided to go looking for another one and it arrived today out of Japan. Perfect condition and with a 50mm 1.4 lens. I knew I'd need to use a different battery and some online people said recalibrating a camera was a tricky business. I had no idea this camera made it so easy. Ironically, I've been shooting with Sony for a few years now, which is where the Minolta camera tech ended up after being sold by Konica - full circle and all that.

Beste Dan, welk type batterij raad je dan aan, de alkaline of de zilver oxyde? Ik heb net een STR 100X gekregen met een nog werkende batterij maar deze zal ook geen eeuwen meer mee gaan, denk ik. Blijf vooral door gaan met je kanaal. Je inspireert zo vele analoge fotograven.

Thanks for this. Do you know of any other mechanical camera brands that had this feature?

Thanks Mr. Dan, I’ll do that to my SRT 101. Love my SRT 101, it has a solid shutter action that sounds so cool!

That's very ingenious. And so simple too. Pity I don't have an SRT. 😆

I hope this also works for my camera which is not a Minolta. Otherwise you have gotten my hopes up for nothing.

I did this calibration but accidentally used a metal screw driver to move the battery check meter, is that bad? Everything still seems to work but now I worry because I see that others only used a toothpick.

This is fantastic! Only one question…what modern battery fits the SRT compartment?

Simple and extremely effective. Brilliant!

I do not know how much effect it has in practice (maybe the difference is negligible) but adjusting the potentiometer is not the same as using an adapter(/voltage regulator) or changing the circuitry by soldering in a diode, because the behavior of the CdS cells is nonlinear with resistance in the circuit. I recommend checking out Mike Willegal's Minolta SRT page about the workings of the SRT's light meter, and Dick Sullivan's resources on Rokkorfiles. Basically, using a higher voltage battery and a higher resistance of the potentiometer changes the behavior of the CdS cells. This is because the voltage drop over the potentiometer varies with the current through the circuit, and the current is dependent on the resistance of the CdS cells, which in turn is determined by the amount of light. In contrast, an adapter/voltage regulator will guarantee a constant 1.35 V output, while a diode will always have a constant voltage drop, therefore also basically guaranteeing a constant 1.35V. It's therefore also not recommended to use alkaline batteries, because over time their voltage slowly decreases. Silver oxide batteries, in contrast, do supply a constant 1.55 V for 90-95% of their lifetime. Again, I'm not sure if the difference is noticeable in real life, but as an electrical engineer I do know that the behavior of the circuit will be different, and that the potentiometer, by design, was only meant to fine-tune the calibration.

Unfortunately, my SRT-101 meter failed a second time soon after my local Minolta repair shop closed and I have been either using the sunny 16 method or my X-700. Wonderful and useful How-To video!

Will it also work for the SRT102?

Will it work on the Minolta sr-7?

Just change the ASA number on the meter

Thanks, I have a question. I bought the Varta batteries V625U/LR9 for my Minolta SRT 101, but I can't seem to be able to move the needle down. Is there any other issues or possible fixes so that I can use my camera?

Bloody excellent! Thanks for sharing this amazing tip. I'm getting my watchmaker's screwdriver set out right now!

There was an entire series of "STR" cameras 📷. Will this "fix" work on all of them? A few of them? Or only on certain selected models? It would seem that such a "easy fix" like this would be all over the Web. But I've never heard of doing this before. And it's so easy!

thank you for this. i’ll try it tomorrow

I’ve owned my sr-t 200 for several years now but the meter has never worked. The needle isn’t stuck as it moves when the switch on the the bottom of the camera is placed in the bc position, but when turned on, the meter doesn’t seem to react to light. It stays up all the time.

The funny thing is that for my SRT Super, I had to move the trimmer pot the opposite way, so it's at about 10 o'clock to center the needle for ISO100, 1/125s and f11.

Thank you very much ! The video is very useful ! However I'm facing a little issue : I bought this model second hand and while the light meter needle works, the other which indicates my exposure according to the aperture and shutter speed doesn't move. Do you think this is caused because the battery is not suitable or is it a mechanical problem?

Thank you for the awesome video! Have both of my SRT's dialed in now!

Thanks very much. I have three SRT101s that I've been using as paper weights and book ends.

Hello Dan thanks for the video.Question can I apply this to the Spotmatic

Excellent !!!! Many Thanks.

you're a genius

Thanks for Posting this!

Vielen Dank für die Info 👍👍👍