A search on B&H for "sun projection screen" brings up this, worthy of Rube
Goldberg:
http://www.bhphotovideo.com/bnh/controller/home?O=ProductDetail&A=showItemLa
rgeImage&Q=&sku=530850&is=USA
You might then need a 35 Shift to get a good image. Now who would have
thought of a 35 Shift for solar photography?
Piers
-----Original Message-----
From: Moose [mailto:olymoose@xxxxxxxxx]
Sent: 23 May 2012 06:30
To: Olympus Camera Discussion
Subject: Re: [OM] Moon Wind and Fire
On 5/22/2012 6:20 PM, Mark Marr-Lyon wrote:
> I didn't try to do anything as fancy as Ken, but here's my photos of
> the eclipse. Taken with E3, Zuiko 300/4.5, 1.4X-A, 2X-A
Makes me happy to have a 1000 mm lens.
> , and a bit
> more than 8 stops of ND filters. Not the sharpest combo but I had fun
> with it,
I'd been informed, several times. But somehow, hanging out in the garden
with book and refreshments, reading, checking my eyelids for pinhole leaks,
etc., I simply forgot about the eclipse. Nice to know I could create shots
from scratch in PS. :-)
Well, joking aside, I did enjoy them, and the last one is really quite nice.
> and I'll have a go in a couple of weeks for the transit of Venus.
When I was in my early teens, I lived in a high room with a view to the west
through the Golden Gate. One of my amusements was to use my home made 4 1/4
in. Newtonian reflector to project images of the sun onto a piece of paper
tacked to the bulletin board above my bed. The image was pretty big, filling
a fair part of an 8.5x11" page. I could easily see sunspots, with some
detail, and follow their day to day progress.
I wonder if it would be easier to simply photograph an image projected
through all that lens stuff with a simple camera lens combo than to use all
the ND stuff with camera mounted to the lenses. As all the telextenders do
is make the image larger, they might not be necessary, just project farther.
No, can't be that simple, your focused image is small, for 35 mm film, and
would lose focus at greater distance/size.
And my aerial image was smaller; I must have used a viewing eyepiece on the
telescope to project the image to the wall.
I do remember that it was a focus-able image.
So I could possibly use my 1000/11 lens for projection of a sun image, as it
is designed primarily as a telescope with eyepiece, requiring an adapter to
T-mount for camera use. But you would need an adapter on the back of your
lens(es) to hold an eyepiece/projection lens. Oh well, never mind. :-)
Speculative Moose
--
What if the Hokey Pokey *IS* what it's all about?
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