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Re: [OM] Something Fishy This Way Comes

Subject: Re: [OM] Something Fishy This Way Comes
From: Moose <olymoose@xxxxxxxxx>
Date: Mon, 17 Jun 2019 14:08:30 -0700
On 6/17/2019 9:51 AM, Wayne Shumaker wrote:
I do miss the zuiko OM 16mm.

I think the Panny 8/3.5 is a worthy successor for µ4/3. Then the Oly 8/1.8 Pro offers speed in return for $, size and weight.

Brand         FL      AoV    Optical  Diaphragm  F/stop Min.    Focusing   Weight   Length    
Max.    Hood     Filter
                              Const. range Focus
Olympus OM    8 mm    180°     11-8     Auto     3.5~22    0.2m. Helicoid    180g.    31mm     59mm    
Not      Built-in
                    Sony E = 56mm             needed   (L39)
                        µ4/3   = 58mm                      (Y48)
Panasonic     8 mm    180°     10-9     Auto    3.5~22 0.1m.     Internal    165g.    52mm.    
60mm.  Built-in    Rear
Olympus µ4/3  8 mm    180°     17-15    Auto    1.8~22 0.12m.    Internal    315g.    
80mm.    62mm. Built-in None

The Panny is slightly smaller and lighter than the 16/3.5. Length is not obvious, as the 16/3.5 is designed for OM mount, clearing the mirror. With adapters to Sony FF or µ4/3, it's actually longer than the Panny. Makes sense, as it has the built-in filters.

FYI I found this:

Thanks, an interesting link. I tried his technique, and, guess what, it stretched corner stars into lines. Just what I expected. Also, of course, by focusing on the skyline on the bottom half of his image, he has even further distorted the Milky Way into half a circle., which should also be straight. I don't think there's any way to use a Fishy for what he's trying to do.

For terrestrial photography, it's simple, keep the camera level in both planes, then crop top and/or bottom as desired after correction.

If you must shoot pointed up or down from level, apply fisheye correction, then 
do perspective correction.

Hemi Fishy Moose

What if the Hokey Pokey *IS* what it's all about?
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