I'd like to do some still life photography in low light w/ a 6x6 camera, and retain the whole negative on the alternative type of printing I'm doing. While my Argoflex delivers wonderful results, I realize that I will probably have to go to a TLR with a bayonet mount in order to use close up filters like the Rollei and Yashicas have. Did anyone make close up filters for non bayonet lenses? Just simple push on filters? How about the Lomo stuff? I'm not after ultimate sharpness, more of a pictorial look. I can't crop the shots to get what I want, as I wish to display the film's markings also (like the shots below, but in close up modes of flowers, bottles and stuff).