CC 1420 LECTURE 6: POLAROID TROUBLE SHOOTING – UNDER/OVER-EXPOSED IMAGE

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INTRODUCTION
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Controlling the exposure value (EV) could be really challenging to both beginners and experienced users. Sometimes you may find it difficult to correctly set the exposure wheel. This may result in over/ under-exposed shots.

Impossible film can be mainly classified into two types: high ISO (600) and low ISO (SX-70). Many people are confused about HOW to take a correctly exposed picture.

 

PART 1.

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Tips about setting the brightness

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To use 600 film in a default ISO100 camera(e.g. SX-70 Model 1, Model 2, Sonar, Alpha)

⇒ Use Flash (half power)/ Turn the exposure wheel all the way to darken (black) / Use ND filter

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To Use SX-70 film in default ISO100 camera

⇒ In normal case, you should keep the exposure wheel in the middle position

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To use 600 film in default ISO600 camera (e.g.SLR670a/SLR680)

⇒ In normal case, you should keep the exposure wheel in the middle position

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To use SX-70 film in default ISO600 camera

⇒ Turn the exposure wheel all the way to lighten (white)

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PART 2.

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Reasons of Under/Over-exposed image

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Film to use corresponding to indoor/ outdoor?

You are suggested to use flash high ISO film (600) indoor and low ISO film (100) outdoor. If you plan to take pictures in both indoor and outdoor, you should use low ISO film and use flash if necessary.

In a condition of very bright light, even when you use SX-70 film (ISO100 film), it is still possible to result in over-exposed images. There are 2 solutions: adjust the exposure wheel to darken, or use an ND filter and keep the exposure wheel in the middle position.

Most of the SX-70 cameras are programmed as ISO100. In most cases you should use corresponding SX-70 film (ISO100 film) as this will ensure the image is correctly exposed. If you want to use 600 film (approx. 6 times more light sensitive than SX-70 film) in your SX-70 camera, you need to put an ND filter before shooting or you will get over-exposed images.

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Temperature differs?

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Photo tends to look pale and with low contrast under cold weather.

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Shield after shooting?

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Impossible film tends to be sensitive to light. Shield the picture immediately after ejection and avoid exposure under the Sun or bright light. You can use the darkslide (the black cover that ejects immediately after you insert a new film pack) to cover the image. Or even better, use Impossible Frog Tongue to make the shielding easier. Once it is ejected, leave the picture face down for 10 minutes for Impossible B&W films, and 30 minutes for colour films. This will largely increase the successful rate of developing nice pictures.

 

REMARKS

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  1. Frog Tongue is available for all boxtype/ folding SX-70 and Image/Spectra cameras.

2. The light bulbs on top of SX-70 is the original Polaroid Flash Bar. It is a disposable flash with a 10-times use flashbulb unit. Suitable for SX-70 Camera/ OneStep Rainbow. These flash bars are no longer manufactured and have been gradually replaced by electronic flash.

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That’s why MINT created MiNT Flash Bar 2, which is a revolutionary re-usable high quality electronic flash bar device for all Polaroid folding and box-type SX-70 type cameras. It comes with 2 filters for your creativity.

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3. Lens Set for Polaroid SX-70 Cameras is also available. The set includes Fisheye, Close-up, Blue filter, Yellow filter, and ND filter. You can get as close as 12cm, take selfies with friends, get the nice blue colour of the sky, create higher contrast in B&W photos, and shoot 600 film in SX-70 cameras. It is definitely another must have item besides the flash.

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