Changing ASA in mid roll

[glowie]

Hello

I did a terrible noobie move 🙁

I forgot to set the films ASA on the camera. Is it OK to change ASA in mid roll?


Thanks
glowie

 

[oftheherd]

What film are you using, and what film speed did you set it at before discovering your error?

 

[Mr_Flibble]

It shouldn't hurt your camera if that's what you are thinking.

Or is this different for Olympus RFs?

 

[glowie]

Hello

The Camera is an Olympus XA. The film is Kodak 400UC and the ASA is in 100. Is the film a gonner if I set the ASA from 100 to 400 in mid roll?


Thanks
Glowie

 

[bsdunek]

The photos you took at 100 will probably be very underexposed (two stops), but you might get something.
Reset your ASA to the correct film speed and the rest of the photos should be fine. 😎

 

[itf]

Hello

The Camera is an Olympus XA. The film is Kodak 400UC and the ASA is in 100. Is the film a gonner if I set the ASA from 100 to 400 in mid roll?


Thanks
Glowie

I don't know what Kodak 400UC is (b&w or colour, neg or tranny), but if it's neg it'll be fine; it's overexposed which is ok (better than under for neg). If it's pullable (can be underprocessed) just continue at 100 and pull process it. Otherwise change the ASA to 400 and then finish the roll, the first photos will be overexposed but not so bad.

Maybe someone who knows the film can say.

 

[glowie]

Thanks Guys! the cheque is in the mail......i keeed 😛

 

[amateriat]

Color neg film (and chromogenic b/w film) generally has more exposure latitude, particularly ISO 400 and faster. Some exposures on that roll will work out better than others, but no, the roll isn't toast.


- Barrett

 

[grainy_shadows]

i have exposed iso 400 superia at 100 before, the photos when printed looked fine, some shots were overexposed though

 

[ath]

The photos you took at 100 will probably be very underexposed (two stops), but you might get something.
Reset your ASA to the correct film speed and the rest of the photos should be fine. 😎

Well, actually they will be overexposed. I do this often on purpose with superia 400, esp. when photographing people with dark clothes where I want to have details in the cloth (read: groom).
Standard prints might be a bit light, but a good lab should be able to do very good prints from this.
Changing the ASA will neither hurt the camera nor the film.
Superia 400 @ 400 ASA looks a bit underexposed for me.

 

[payasam]

As itf said, if it's negative film you should still get passable prints despite the two stops overexposure.

 

[saxshooter]

Shooting ASA 400 at ASA 100 is only two stops overexposure. It will print OK, but you may have some trouble scanning it, since negative scanners sometimes have trouble scanning dense negatives. You can change it back to ASA 400 for the rest of the roll. This is IF you have no plan to do any fancy processing adjustments (ie, pulling development). If you do plan to do that, then shoot the rest of the roll as you did the beginning. At ASA 100.