Polaroid 600 film actually fits in an SX-70 camera fairly easily.  The problem with using Polaroid 600 film in the SX-70 is that it is four times more sensitive than SX-70 film.  Without modification, all your photos taken with Polaroid 600 film would be overexposed.  To correct this problem, you need to adjust the camera by two stops. We will use a one stop neutral density filter to cover the camera lens, and we will remove the neutral density filter that covers the photocell.  If you are wondering why we are adjusting by two stops when the film is four times faster, here is a quick math lesson.  One stop is equivalent to doubling (or halving depending on which direction you are going) the amount of light.

     Alright, let’s get started.  You are going to need a few supplies in order to make the modification on your SX-70 camera. You will need a clear CD case, a good knife and a one stop neutral density filter.  Depending on the neutral density filter you find, you may also need some glue to affix the lens to the camera.  The Polaroid 600 film has four little plastic nubs at the bottom, which prevent them from being loaded in a camera designed for SX-70 film. There are 2 different ways to overcome this:
1.  Remove the two nubs in the middle in order to load the film.
2.  To load the Polaroid 600 film without removing the nubs, use something smooth that covers the nubs as the pack is inserted.  Any smooth card will do the trick or use the dark slide of a previously loaded instant film will work as well (hold the card or dark slide, also known as the black tab or cover sheet, under and slightly beyond the pack while loading).  Got the Polaroid 600 film inserted into the SX-70 camera?  You’re not done yet.  The Polaroid 600 film is four times faster than the SX-70 / Time-Zero film which will cause your pictures to be over-exposed.  Even if you adjust the exposure control settings to reflect the dark, your pictures will still be overexposed.

     If you will be taking photographs in broad daylight only, you can reduce the amount of incoming light by affixing a 2-stop neutral density (ND) filter in front of the lens (this will also darken the view in your finder).  Here’s a different trick:  Use a 1-stop ND coated filter and set the exposure control 1.5 stops to darken.  If you are planning to take photographs in any light (not just broad daylight), then remove the filter retaining ring (the little chrome ring which surrounds the photocell) on the front of the SX-70 camera (gently push the tip of a small knife under the edge to pop out the ring).  Then you can remove the small round neutral density filter and replace it with a similarly thin piece of clear plastic (plastic from a CD case will do the trick, use a good knife to score the plastic as a pair of scissors will only crack and splinter the plastic).  Re-fit the housing, insert the film and affix a 1-stop ND filter in front of the lens.  The exposure-control settings will now allow you to compensate for the film speed.

Click Here To Visit Okc Trade Assistant eBay Store for Polaroid 600 Film

     I hope you have found this Guide to be helpful and that you click the YES button below.  Thank you for reading my eBay Guide.