Re: 202 & flare!

[Willem-Jan Markerink <w.j.markerink@xxxxx>]

On 16 Mar 99 at 20:17, Bill Barton wrote:

> Question,
> 
> I am new to the 202 Horizon swing lens camera, and have seen the posts 
> about the problem with the weird flare you will get. Also with my first 
> roll of film in the camera I tried it and saw what happens.
> 
> However today with the last bit of snow I guess/hope we will see this
> winter I was playing in the back yard and tried a shot where I put the
> sun in the middle of the frame and was shooting at about f 11. When I
> picked up the film from the lab this afternoon NO Flare!! it looked like
> a normal multi coated lens shot against the sun, it was great....
> 
> Any thoughts or ideas, was it just because I had the sun centered or
> because the lens was stopped all the way down?????

Fascinating eh?
While the existence of flare (with its nasty vertical bars) can be
explained quite easy and straight-forward, the lack thereof is almost
a mystery....
Btw, I never really checked this with normal optics, but it seems as 
if the same flare-abstinence might occur a certain angles there as 
well....perhaps in combination with certain apertures, who 
knows?....I have seen the nasty bars at all apertures, so 
aperture-only is not a cause.

Also: has anyone considered how utterly bizar & unnecessary those
vertical bars are, when looking at the physical cause? It only takes
a Dremel tool to make it a clean & even flare....simply cutting away
the front of the drum, so that the sun hits the lens gradually from
side to side, instead of suddenly when peeping through the front
opening....
With the 202, that would prevent decent filter mounting, so it's a 
compromise....but on the Noblexi this would be worth a try (magnetic 
filters). Don't think axial balance would be critical.

Actually, any owner of a Super Roundshot (using ordinary 35mm or 120 
format lenses, unshielded) should have discovered this already....

Damn, that Dremel is tempting....8-))

--                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]