[meteorite-list] Meteorite Photography (Must read!)

[Erik Fisler]

AL & John- More depth of field at higher F-stops yes, but you loose sharpness with each f-stop.  Therfore, combining a series of F2.8 shots into one picture will be sharper then shooting at F22.  This is proven and published in several canon and nikon articles.  Especially when you have a 10-24mega pixel camera with highlight tone priority on with a good processor.

Rob- An interesting fact that ties in with when you say "a good lens" is that lenses with the wider minimum apertures are sharper at higher f-stops than lenses that don't as wide of a minimum aperture.  
For example:  An F1.4 lens at F3.5 is sharper then a F2.8 lens is at F3.5.

Chris is very right!  I use my F1.8 50mm at a minimum of F2.2-F2.8 for that very reason.  It's often in Vincent Laforet's Blogs.

Martin is right about extension tubes! I also have the Sigma 70-300mm which, with the flip of a switch, can be used for macro between 200mm and 300mm.  That is the sharpest F3.5-5.6 lens I've ever seen or used.  I can't believe I only payed $200 for it!  It's a challenge to flip it to macro, then put both of my extension tubes on it.  It's almost a microscope!

Matteo, dont mention Zeiss lenses.  I'll burst with jealousy! You are spoiled!

[Erik]


> From: almitt at kconline.com
> To: meteorite-list at meteoritecentral.com
> Date: Wed, 27 Jan 2010 08:50:27 -0500
> Subject: Re: [meteorite-list] Meteorite Photography (Must read!)
> 
> Hi Erik and all,
> 
> I'd think just the opposite would be correct. A higher f-stop (f 22, 18 
> etc.) would create a better depth of field and the more open your iris is on 
> your camera (lower f stop, 1.8, 2.0 etc.) the less focused your items would 
> be. I think you just stated it backwards. Best!
> 
> --AL Mitterling
> Mitterling Meteorites
> 
> ----- Original Message ----- 
> From: "Erik Fisler" <erikfwebb at msn.com>
> To: "meteorite-list" <meteorite-list at meteoritecentral.com>
> Sent: Tuesday, January 26, 2010 3:51 PM
> Subject: [meteorite-list] Meteorite Photography (Must read!)
> 
> 
> 
> The third thing is auto-blending. For those of you who have SLR's you will 
> notice that shooting at a higher F-stop like F1.8 or F2.8 is a lot sharper 
> than shooting at a lower F-stop like F22. The problem is, you might have to 
> drop your F-stop to make sure the whole meteorite is in focus. 
> 
> 
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