What caused this strange ring in the picture?

[justin_reece]

I'm trying to figure out what went wrong with this shot. It happened to a couple

in the roll.

 

They were 1 second and 1/2 second exposures at night, cable release.

Delta 100, pushed to ISO 200. (I accidentally metered for 400).

D-76 1-1.

 

Hasselblad 500c/m, 80mm

 

Thanks

[borrel1]

Flare from a chrome filter ring or the filter thread on your 80mm (if it's chrome)?

 

- Børre Ludvigsen

[justin_reece]

There was no filter on the lens.

[justin_reece]

Oh - and it's black.

[simus]

Did it affect just one frame ?

 

 

Antonio

[q.g._de_bakker]

Justin,<br><br>It is flare of some sort, no doubt about that.<br>The peculiar dark spot in the center probably is just a true rendition of the bright light that caused the flare itself, which, i suspect, might have a disk obscuring the lamp itself, throwing all light to the reflector behind the lamp, which in turn projects it outwards.<br><br>Can you post more (and larger) pictures of this phenomenon?

[q.g._de_bakker]

P.S.<br><br>The "peculiar dark spot" of course isn't dark, just not affected by the flare. Sorry!<br>But you will have understood what i meant.

[q.g._de_bakker]

And another P.S.<br><br>Is what we see a fire engine coming round the corner?<br>If so, it indeed is a rendition of the rotating reflector inside the rotating light on front of the vehicle. And i bet all the other images that show the same then also have a rotating lamp in it.

[cpj]

Sometimes it just kills me to have to agree with QGdeB but I think he's right. Whatever it is it

is moving, has lights on it, and it looks like the lights are moving too.

[justin_reece]

The thing coming around the corner is an old electric streetcar on tracks. It bounces a lot when it makes the turn. None of the lights are moving - just the whole thing.

 

Here is a link:

http://flickr.com/photo_zoom.gne?id=2150891427&size=l

[q.g._de_bakker]

Well, so much for that theory then.<br><br>Whatever it is, the flare-free part is caused by an obstruction in the (flare) light's path/the shape of the reflector causing the flare.<br>It could well be that this annular flare is light reflected off the inside walls of the lens barrel.