Archived posting to the Leica Users Group, 2002/03/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]There are several problems with photographing x rays... First, the far and out best way to photograph them is to make a lightbox with a whole bunch of bulbs and dimmer switches so you can in effect change the level of illumination between the dark and clear areas... and tame contrast. The second best way and the way I do it, is with a soft box and a piece of plexi glass to keep things flat and evenly illuminated.... I use a spot meter for flash and take readings from the lightest spot and the darkest... and then bracket..... I use black pieces of mat board around the edges so it looks professional and you don't have glaring white borders. It also gives a very nice neutral color. The worst way is to photograph them on the viewer as they often have hot spots along the tubes that docs don't notice until they see the slides you shot..... etc.... I've not worked with Scala... so I don't how it handles contrast..... Some xrays are worse than others.... CT and MRI scans are the worst as they always seem to be as dense as all get out.... Either way.... figure out what tones the doc wants and then bracket !!!! IMHO Digital is the way to go..... but you have to set the contrast on the camera at the lowest setting..... and then you still have to work to get the detail out of the dark areas. BTW I photographed some xrays and CT scans of TB case this morning. Duane HCJB World Radio Quito Ecuador Duane's Photographs of Ecuador http://ecuadorphotos.tripod.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html