Archived posting to the Leica Users Group, 2002/03/22
[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 Digital is the way to go, but Kodak to make a rapid process copy film which is excellent. you can process it in the xray processors at work ;-) and its direct b/w slide film. - -- Alastair Firkin http://www.afirkin.com http://www.familyofman2.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html