How do I change the ISO/ASA and question on flash

There should be a button that says ISO on it, or just a set of arrow buttons. ASA/ISO are the same thing, and indicate the speed of the film being used. 100/200/400/800/etc. Not setting the camera to the proper setting will result in dark or light images.

If you can't find your ISO setting, try searching Google for your model and you should be able to find a pdf download of your manual for free.

You can use any 35mm film in any 35mm camera. You must set the film speed (ASA or DIN number) on the camera to match what it says on the film. This is to get the correct exposure, as different films have different sensitivities.

The EM doesn't really have a manual shutter speed setting. It does have a Bulb setting for long exposures and a 1/90 second manual for flash, but otherwise the camera automatically sets the shutter speed to go with the currently selected aperture.

Normally you would set the aperture and let the camera set the shutter speed. You can adjust the shutter speed by pressing the exposure compensation button for +2 stops. You can also adjust the exposure by changing the ASA/ISO setting.

If you need a manual, you can download one from http://butkus.org/chinon/nikon/nikon_em/nikon_em.htm

Without ISO you will not be able to take pictures.
ISO is the old ASA which is related to film speed
ISO 50 is very slow film speed and may result in blur and some grainy appearance , same as if you PUSHED ISO up to 800 in low light.

Try setting it to ISO 100 and see if that helps.

You can still select auto, but its related to either shutter or aperture priority in relation to the set film speed ( now ISO 100)

Is there a row of electrical contacts inside the camera's film chamber where the film canister goes? If so, then the camera automatically reads the ASA or ISO value from bare metal areas on the outside of the film canister.

It might depend on what distance you expect the flash to travel in order to light the subject. How many times havbe you benn to outdoor cocerts and seen flashes going off Many of those pics are goin to be dark because the flash is unlikely to reach that distance to be effective and the only light available to the sensor is the ambient light.

You need to observe what settings the camera reports like F numbers and speed numbers 1/30 1/60 at 1/60 and below the flash is activated and the aperture might be F16 the rule of thumb is higher the number smaller the hole, which with flash this setting would be ok

if it goes to F4 5 or even 8 it may be too restictive and cause under exposure.
The ISO setting is also helpful to understand here to The ISO is like the old film speed number ASA 100 daylight film ASA 400 is more sensitive to low light so change your ISO (ASA) setting to a higher number and see if that helps you take a better picture

Cheers

if it does not support manual ASA/ISO selection than you can just easely set it to under exposure( 1F stop) and afterwards just develop it as a 800ASA film.

put simply the ISO number is how sensitive the film is to light, the higher the number the more sensitive the film. The ISO on the camera sets the exposure system to give the proper exposure for that film (the f/n80 usually sets the ISO automaticly). Also the higher the ISO the more grainy the picture, I would recommend using ISO 200 film for the pictures you describe. I would set the camera to the P setting it is a good all-around setting.

Hi Pete,

Say you're using ASA/ISO 100 film:
Photos come out overexposed and you were shooting in A or S or P modes.
Just set your ASA/ISO to 200: this will gives one stop less and images will be correct.

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Yes, on this camera you leave the aperture ring at f22 and use the camera's controls to set your f-stop. It won't work is you change the ring on the lens. You gain the control of the aperture in the 'M' and 'A' modes. The 'P' setting is for the camera to pick both speed and aperture for you. 'S' is shutter priority, etc