Sold Pentax Digital Spotmeter (Zone VI modified)

[mcnash]

Pentax Digital Spotmeter (Zone VI modified)​

in great condition!
370€
350€ without the wrong batteries


located in Vienna/ Austria
and can be shipped worldwide.

 

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[mcnash]

open to reasonable offers!

 

[waffles]

What modifications were performed by zone IV?

 

[chriscrawfordphoto]

Pentax Digital Spotmeter (Zone IV modified)​

in great condition!
370€


located in Vienna/ Austria
and can be shipped worldwide.

Those CR123 batteries won't fit the Pentax spotmeter you're selling. It takes a 6 volt silver-oxide battery.

 

[chriscrawfordphoto]

What modifications were performed by zone IV?

They replaced the sensor in it to one that is filtered to make its spectral sensitivity more closely match the color sensitivity of film. They also claimed to have reduced the amount of flare in the optical system. I have one of these, and a regular un-modified Pentax Digital Spotmeter. I did some extensive testing a couple years ago and found that the biggest difference is in sensitivity to infrared. The modified meter is, like film, completely insensitive to IR. That makes metering things that reflect a lot of IR, like green foliage, much more accurate and it improves accuracy in scene lit by incandescent lights, which produce a lot of IR. Aside from that, it is a little more sensitive to blue and less sensitive to red than the normal meter, which is how most B&W films are.

 

[mcnash]

They replaced the sensor in it to one that is filtered to make its spectral sensitivity more closely match the color sensitivity of film. They also claimed to have reduced the amount of flare in the optical system. I have one of these, and a regular un-modified Pentax Digital Spotmeter. I did some extensive testing a couple years ago and found that the biggest difference is in sensitivity to infrared. The modified meter is, like film, completely insensitive to IR. That makes metering things that reflect a lot of IR, like green foliage, much more accurate and it improves accuracy in scene lit by incandescent lights, which produce a lot of IR. Aside from that, it is a little more sensitive to blue and less sensitive to red than the normal meter, which is how most B&W films are.

Thank you so much Chris

couldn`t write it up better!

(CR123 I use for Mamiya, 6v for Pentax)
- I mixed it up!

 

[MarkS]

BTW it's Zone VI (6), not Zone IV (4).
I left my own modified meter out in the field somewhere a dozen years ago and still miss it. I've gotten by ok with other meters, but the Zone VI/Pentax is a special piece of gear.

 

[mcnash]

BTW it's Zone VI (6), not Zone IV (4).
I left my own modified meter out in the field somewhere a dozen years ago and still miss it. I've gotten by ok with other meters, but the Zone VI/Pentax is a special piece of gear.

true! thanks for pointing > Zone VI out!
too many mistakes in one add!