I'm planning to get a B&J Press, a Busch Pressman or a Tower Press 4x5". Will I have any trouble with this lens on any of these cameras? I'm guessing that I won't be able to close it up, but hopefully I'm wrong... It's mounted in a Synchro-Compur, for what it's worth. Here's a picture: http://www.photila.com/productdetail.php?prod_id=192&subcat_id=0&brand_id= Here's the S-K info: http://www.schneideroptics.com/info/vintage_lens_data/large_format_lenses/symmar/data/5,6-180mm.html It says the overall length is 56mm. This eBay auction #130533509818 has a good picture as well. Thanks for your help!