bill_chepel1

<p>New to studio flash photography and just purchased an Elinchrom RX4 lighting kit. I have a question regarding the guide number as found in the manual which is stated as 64.3 (f/stop at 1m: f/64.3, ISO100).<br> My question is does the guide number change with the power settings? I understand that the GN = (distance from flash X f/stop) but do the unit power settings change the GN? If so, shouldn't there be a chart? Also, I have found the power settings (2-6) referred to as 5 f/stops. How do the number 2.0 - 6.0 correspond to f/stops? <br> Thank you!</p> <p> </p>

<p>Thanks for the great responses. I also need to research what should be checked on a camera that has sat for 30 years. I think it still has film in it! Any advice is greatly appreciated.<br> I found a guy in MA that specializes in Hasselblads, but he has an 8-10 week turn around. I don't think I can wait that long to play with my new camera. I think it still has film in it! Any advice is greatly appreciated.</p>

<p>I have the opportunity of getting a 70s el/m with lenses. I'm blown away by how heavy the camera is with a 150mm lense. How much does the motordrive contribute to the overall mass and is it possible to remove it and use the camera manually?<br> Thank you!</p>