Richard, does that mean that your a better photographer if you can hike for 7 hours. IMHO it takes a much better photographer to take a great photograph 10 feet from the car. Franc ----- Original Message ----- From: Richard Man To: hasselblad@xxxxxxxxxxxxx Sent: Wednesday, January 26, 2011 2:26 PM Subject: [HUG ] Re: VS: Re: AW: Re: It's a sad Hasselblad day........ That was my plan originally too in this thread - return the 60mm and get the 50mm and see how things go. I guess I will do that. I am sure the 503CW/P30 is a killer combo, but it will be the "shoot within 100 feet of a car" type of images rather than "hike 7 hours into wilderness" type, unless you are Bob Adler of course :-) (he called me "wimp" when I made the "..100 feet of a car" comment) On Wed, Jan 26, 2011 at 12:41 PM, Franc Flipsen <fujifan@xxxxxxxxx> wrote: Hi James, I think he's talking about 4/3 sensor used by panasonic and olympus. As for your P30 back, it has a crop factor of 1.3 so the viewing angle of a 40mm lens is actually 52mm. Also PhaseOne does not recommend lenses wider than 40mm (before Factoring) as they cause color fringing on the edges of the sensor. With that in mind an SWC or a 30mm is out of the question. 40mm(52mm) 50mm(65mm) 60mm(78mm) 80mm(104mm) 100mm(130mm) 120mm(156mm) 150mm(195mm) 180mm(234mm). Taking the crop factor into consideration I'd start with a 50, 80 and a 120 then add a 40 and a 180. Once you get used to the quality of a digital back you'll never go back to 35mm gear for anything serious. I got hooked on my old kodak back (16Mp) traded up to a P25 and really got addicted, Now I've got a H3d39 and prefer it to my Nikon D3. Your going to see a big difference even in an 8x10 print. Franc -- // richard <http://www.imagecraft.com/> // icc blog: <http://imagecraft.com/blog/> // photo blog: <http://www.5pmlight.com> [ For technical support on ImageCraft products, please include all previous replies in your msgs. ]