40moses
5-May-2009, 07:20
IS NOT PRODUCED ANYMORE. WHAT CONSEQUENCE; WHAT AID ?
After the instruction book 4.20 for all IMACON FLEXTIGHT PRECISION you must insert only 12-950 tubes (the reason consists in the light character and in 5000° Kelvin). Remember: White balance at 5000° is very common.
But since 2 years OSRAM Inc. has discontinued (OSRAM make further tubes of 59cm lenght 12-950 but not 24cm lenght). The answer of OSRAM support says:
"Replacing with 12-954 tubes the colour reproduction and temperature is not the same (this is clear- because 954 has 5400° Kelvin). This means that you will probably need to undertake a big calibration job."
Hasselblad support goes not into details, only responds summary: "Take 5400° tubes now and all is good working".
(This answers is motivated by the fact, that Hasselblad should not have sufficient economic power to accomplish a new production line at OSRAM to continue wth 5000°. Remember that Hasselblad now sells the 848 etc).
But I cannot cast away such an excellent scanner only by lack of simple tubes !)
Questions:
1) Any Hint if it is possible to recalibrate the scanner permanently (eg to make speciale "setups" in ColorFlex to eliminate the temperature difference once forever by using 12-954) ?
2) Any other experience with this replacement problem ?
3) Or is it now necessary to adjuste every single negative scan to this new 5400° ?
Hope to find a good advice 40moses
After the instruction book 4.20 for all IMACON FLEXTIGHT PRECISION you must insert only 12-950 tubes (the reason consists in the light character and in 5000° Kelvin). Remember: White balance at 5000° is very common.
But since 2 years OSRAM Inc. has discontinued (OSRAM make further tubes of 59cm lenght 12-950 but not 24cm lenght). The answer of OSRAM support says:
"Replacing with 12-954 tubes the colour reproduction and temperature is not the same (this is clear- because 954 has 5400° Kelvin). This means that you will probably need to undertake a big calibration job."
Hasselblad support goes not into details, only responds summary: "Take 5400° tubes now and all is good working".
(This answers is motivated by the fact, that Hasselblad should not have sufficient economic power to accomplish a new production line at OSRAM to continue wth 5000°. Remember that Hasselblad now sells the 848 etc).
But I cannot cast away such an excellent scanner only by lack of simple tubes !)
Questions:
1) Any Hint if it is possible to recalibrate the scanner permanently (eg to make speciale "setups" in ColorFlex to eliminate the temperature difference once forever by using 12-954) ?
2) Any other experience with this replacement problem ?
3) Or is it now necessary to adjuste every single negative scan to this new 5400° ?
Hope to find a good advice 40moses