On Jul 7, 2007, at 5:15 PM, David J. Littleboy wrote: > The 5D doesn't deliver a dynamic range advantage > (at low ISOs), just a two stop sensitivity advantage across > comparable ISOs.
Sure. I thought I'd already made that stipulation clear. Yes, a bigger sensor will get you more high-ISO sensitivity. Of course. I don't think anyone's going to question Canon FF cameras when it comes to available-light photography. Above ISO 800 pretty much nothing can touch them. > Again, no. It all scales; ISO 400 is the same noise performance as > ISO 100. > So ISO 400 at f/4.0 is exactly the same photographically as ISO 100 at > f/2.0. Eh, good point. The Guide Number for range will double with the ISO boost, even though the modifier for F-stop will be lower. > I like my Mamiya 7, too. But it doesn't replace an SLR, and you > have to need > to print larger than A3 to need 6x7. HA! So IQ is vital to you unless it isn't. Heh...I guess we could go on for a couple of days with me saying that 645 isn't a serious format and you can choose to use an inferior format if it suits your needs, but that doesn't make it worth using. ;-) And FWIW, a medium format SLR is only useful, IMO, if you lock up the mirror. When you start moving big mirrors like that around it defeats the purpose of using a larger format. I tried out a couple of Pentax 67s at camera shows and releasing the shutter was like tripping a mouse trap. The Mamiya is really well-behaved, IMO. I can live without it being an SLR in exchange for not having a bid sheet of glass swinging wildly to and fro inside the body. I've actually been thinking about picking up a Fuji GX-680 III. Being able to change off between 120 and a digital back plus having view camera movements (although somewhat limited) makes a pretty strong argument for owing one, but every time I pick one up at a camera show the sheer bulk of it scares me away. It's a lot cheaper option than the SInar M route, though. -Rob ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body