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09/15/2006 06:11:56 PM · #1 |
I had 2 of these lenses. I sold one to  Shutterpug. She has since sold cause she is having a hard time with it.  Matto sold me his because he was having a hard time with focusing.
Anyone that owns this lens and would like to give me some pointers then I am all ears.
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09/15/2006 06:15:10 PM · #2 |
I often use the little marks on my 16mm fisheye lens for focus. I have a similar problem to Matt's in that I have a hard time telling if it's in focus.
I estimate the distance to my subject, and adjust the manual focus based on the marks on the lens and on whatever aperture I am using.
I hope this makes sense
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09/15/2006 06:29:32 PM · #3 |
Wow Rex, I sure wouldnt have thought my problem would have been an epidemic. I know I struggled with it, but I struggle with manual focus on every lens that I try to manual focus with. I hope you get things going cause the lens is awesome when you do hit focus.
MattO
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09/15/2006 07:00:13 PM · #4 |
I bought Shutterpug's. Maybe if you stop it down a little it would be easier? Although the DOF at f/3.5 at 8mm should be pretty deep... like 3ft-infinity at 5 feet probably.
I plan on using mine for skate and BMX, and some indoors/landscape stuff, so I should be able to stop it down (artificial lighting for the BMX, tripod otherwise)
I've had good results guessing the focus based on a distance (almost total darkness and artificial light) with my 28-75, and even 28mm is a lot longer than 8, and the DOF is less. |
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09/15/2006 07:21:13 PM · #5 |
Even at f/3.5, you can essentially get everything from 2 feet to infinity. Set focuss to the hyperfocal distance (about 4 feet) and try it.
Better yet, stop down to f/5.6, and set focus for 1 meter. Everything from just over a foot to infinity will be in focus.
At 8mm, focus is truly "set and forget" for many situations. |
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09/15/2006 07:33:21 PM · #6 |
I was having problems focusing close enough. When I say close enough, I mean inches from the front element. You can loosen the lens a bit from the mount adapter, push it out a few mm and retighten. I literally can get the lens to focus on dust ON the front element. I lose infinity focus, but DOF largely takes care of that and details at infinity are pretty meaningless anyway with an 8mm lens.
This is the result: Fisheye Madness |
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09/15/2006 07:54:13 PM · #7 |
My 8mm focusses to infinity at 1.7m on the scale marked on the lens: the infinity marking is OOF at all distances.
Make sure that you twist the "Lock/Unlock" ring all the way to "Lock" before taking any pics.
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09/15/2006 10:13:03 PM · #8 |
Thanks for the advice. Will this all change by shooting night landscape shots. Got that Atlanta GTG thing tomorrow and wanted to try some shots on the buildings.
Kirbic I sent you a pm.
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