[Leica] Thirteen reasons I don't miss the east coast

[Philip Forrest]

Yeah, I've seen the 500/F rule but I think it may be a little outdated
because our sensors days still bloom when a point of light is
surrounded by dark. Like the sensors are just a little too good and
sensitive for the film rules like that mentioned. Film doesn't bloom or
"leak" like a digital sensor can, when it comes to points of light so
I'd say unless using a top shelf, large pixel (D4, D3, D2Hs) camera
(though your tradeoff is resolution) then we're better off halving that
rule so a 50mm lens is good with 5 or 6 seconds. With my 85mm f/1.4 I
can't do any longer than 2 seconds without seeing drag. 

Phil Forrest



On Tue, 18 Aug 2015 12:27:25 -0700
Adam Bridge <abridge at mac.com> wrote:

> In “Sky and Telescope”’s most recent issue there’s an article on
> shooting landscapes and starry skies. They gave a thumb rule I’ve
> never known:
> 
> The max exposure time is (500 / lens focal length in mm) to minimize
> star trails.
> 
> So for a 50mm lens it’s (500 / 50) = 10 seconds.
> 
> It’s an interesting article with a follow up next month.
> 
> Adam Bridge
> 
> > On 2015 Aug 18, at 12:11 PM, Philip Forrest
> > <photo.forrest1 at gmail.com> wrote:
> > 
> > The star images have a small amount of drag from the rotation of the
> > earth due to my shooting on a static tripod. I've since made a hinge
> > tracker and might be able to capture some better images tonight at
> > lower ISO, longer exposure with less or no drag, if the wind isn't
> > too high. 
> > 
> > Thanks all,
> > Phil Forrest
> 
> 
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