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Using ND Filters
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Anyone got any experience using Neutral Destiny filters, having trouble with to much light ( can you believe it) I’m trying to get sea water to blur…would do it late evening or early morning only high tides are all middle of the night or mid day for next week. So have been thinking of using a filter to block out light.
The question is with the filters when it says adjust 1/3 to 3 stops, does that mean drop 3 shutter speeds so if it was 1/30 without the filter would you drop to 1/4 s with the filter????
Any help or suggestions welcome on this.
Im using a handheld meter with a medium format camera. And to be honest not really sure how slow I need to go.
Also I have a red filter at the moment I’m assuming it would be better to get an ND filter.
Hi Gavin, maybe you should try the red filter and see how it goes.. I took some shots on the beach in late oct time, it was just to finish a roll of 100 ISO film, I was using a 24 mm lens which I stopped to f22 and used the red filter which gave a shutter speed of about 1 1/2 seconds I think. The results were surprisingly good (I only took them to use up the film). Worth giving the red filter a go.
Hope this helps.
Sinead.The red filter should give you a 3 stop difference-
if you want more, and the vignetting of another filter isn’t a problem,
you could use it in conjunction with a polarizing filter-Your choice of film could make a difference too-
depending on its spectral sensitivity- a panchromatic film might be best-At longer exposure times, you’ll also run into reciprocity effects with most b+w films,
making heavier filtration less of an issue-The only way to be certain is to test in advance, I think-
or bracket-j
Thanks guys very helpful, I’ll be shooting on Panf 50…just one more thing if you have the time, if my exposures ever go as far as bulb setting on do you know how long to leave the shutter open for.
I think that, shooting at 50 ISO, filtered, in the evening, your exposures will definitely go beyond a second-
Reciprocity effect for this film seems quite pronounced,
from what I’ve read- though I’ve never used this one myself-A table can be found here, or google Pan-f reciprocity to find a lot of online discussion-
http://www.huecandela.com/hue-x/pin-pdf/PinPLUS_Rfail.pdf
j
Thanks jb7, I never thought I’d have such problems with to much light.
Are you using the Pan F 50 to try and slow the shutter speed? I tried using it a couple of times but never really got the results I was looking for. I really like Agfa APX 100 but it’s hard enough to get hold of. Ilford Delta 100 is nice also.
J, you did a much better job explaining that than I did. That whole Reciprocity Failure thing is a complete head wrecker though!
Sinead.
Was using the pan f 50 to slow the shutter and i wanted to try it out. The Reciprocity Failure is another problem I didnt forsee, its looking like I’ll have to add nearly another 4 secs if Im exposing at 4 secs to start with…judging by that table.
gavin wrote:
Thanks guys very helpful, I’ll be shooting on Panf 50…just one more thing if you have the time, if my exposures ever go as far as bulb setting on do you know how long to leave the shutter open for.
I have used pan F for long exposures. I found it difficut to get accurate exposures when i went into minute exposures and got a few negative that looked dirty, mainly skies, I could not explain this.
If you use Fuji Acros 100 you can use the meter settings as there is no reciprocity failure calculations needed. I have a 6 stop ND and some sample of images using it are here http://eddiemallin.my-expressions.com/galleries/6319_1789401042/64396 Exposures were 30seconds to one minute in most images. Acros seems to be in short supply at the moment but Camera Exchange in Georges St have some and Gunns will have it end of March. Best of luck.
Brilliant Eddie, great pics, exactly what Im looking for. Just wondering would ilford 100 do the same job as Acros 100. I really going of using panf 50
I dont think so, I checked out the technical sheets and it was only the Acros 100 that allowed the long exposures without compensation. This information is on the technical sheets, generally in the form of a chart or graph on long exposures. below is a link to the Delta 100 sheet, the other link is to the other Ilford films.
http://www.ilfordphoto.com/Webfiles/20061301938422338.pdf
http://www.ilfordphoto.com/products/producttype.asp?n=3&t=Consumer+%26+Professional+Films
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