ISO Reading Question

Hi All,

This might sound a little confusing but I'll try my best....Yesterday I went to take some photos with my camera. I have ISO 100 film in my camera. I've already taken several shots with this film and all was good. So, when I turned on my camera yesterday I noticed on the LCD that the ISO symbol was displayed. Normally that never displays, so I read through my manual to find out what it means. It says that if the ISO rating is set differently on the camera than the actual ISO on the film, it's shows up on the LCD. I thought that was weird because my camera automatically reads the ISO and it's a DX film. But anyway, I manually checked the ISO reading on the camera and it was at 3200!! :eek6: How it got there is beyond me!!: So, I put it at 100 ISO, but it is still says ISO on the LCD.:confused5:

Does anyone know why this happened? How to fix it or if it's even a concern? My main concern is that I don't want to be using a certain film speed, but my camera reads another and it might affect the photos. Any advice would be appreciated!:)

I'm guessing that this isn't a Nikon, but to have one of their cameras pick up DX coding the camera needs to be set that way. By setting it at 100, it's manually set at 100. Keep scrolling farther and maybe "DX" will pop up in the LCD display, at least that's how mine have worked. ISO100 film shot at 3200 is a five stop underexposure, so you'd need a five stop push to develop the film. A 1-3 stop push might work with some B&W films, but I'm afraid that this roll is probably beyond hope - sorry to break it to you.

Somehow the ISO speed must have been accidentally changed when trying to change another setting. You've probably figured this out, but it's best to glance at the LCD settings every once in awhile... In fact, I used to push the ISO setting button every time I loaded a roll of film just to be sure it was right - mostly out of paranoia, but it always read correctly. What camera is it, BTW? Setting instructions might be a little different than I describe but maybe someone else can help.

thanks another view for your reply.:)

I have a Pentex SLR camera, and I've read through the manual and it doesn't say anything about switching it back to automatic (anyone have an idea on how to?)--it says it reads the ISO automatically when you put the film in. It says if the film is not DX coded, then you'll have to set it manually or if you want to change the ISO for whatever reason.

So, I'm not really sure how that happened. But someone told me, if I put the ISO manually to whatever the film is, the photos should be ok.

So, if anyone knows a way to change it back to automatic ISO reading, please let me know!!
Thanks.:)

I'm guessing that when you put a new roll of film in your camera, it will automatically read the ISO off of the DX coding. That's the way my Canon works, and I'm betting your Pentex is the same way.