ND Filter Question

[jbwolffiv]

So I played around with one this summer and was happy with my results. ; The advice I got here mentioned maybe getting a .9 or 1.2, I have a .6 right now. ; My question is, can I just get another .6 to put on the one I already have and in essence make it a 1.2? ; This is all still very new to me, but I want to grab another one for Pixelmania. ; All that info is for my 10-24 mm lens to be used during Illuminations.

I have a .4 that will fit on my 18-55 crappy kit lens, I figured to use that during Hallowishes. ; Is that enough? ; Should I get another ND filter for that lens. ; I have step down rings for that from 58mm to 52mm.

Last question, can I get step down rings to go from 77mm all the way to 52mm?

Thanks so much!!

 

[mSummers]

My question is, can I just get another .6 to put on the one I already have and in essence make it a 1.2? ;

Yes, but since you're using it on a wide angle lens, you might create a vignetting problem when stacking two filters together. ; I recommend stacking your current ND with any other filter that you have to see if it causes vignetting at the wide end of the zoom. ; If it does, you'll want to get a new filter that gives you the darkness you want in one filter.

I have a .4 that will fit on my 18-55 crappy kit lens, I figured to use that during Hallowishes. ; Is that enough? ; Should I get another ND filter for that lens. ; I have step down rings for that from 58mm to 52mm.

I can't help you with that one. ; I've only shot fireworks using my Singh-Ray Vari-ND, usually cranked most of the way down to get exposures in the 50-75s range which is pretty dark. ;

Last question, can I get step down rings to go from 77mm all the way to 52mm?

I always get this backwards, so hopefully someone else will chime in and correct me if I have it wrong, but I think you want a step-up ring to use a 77mm filter on a 52mm lens. ; I think a 77mm-52mm step down ring would allow you to put a 52mm filter on a 72mm lens which is the opposite of what you want. ; If that's the case, B&H has one made by General Brand and another made by Quality Brands.

 

[gary]

even if you did not get vignetting, i think the 2 stacked filters would maybe cause some bent light rays, i'm thinking you'd be better off with a straight out 1.8 or 2.1, go strong so you can get really long exposure times, remember you can always manually dial back the length of time, but you cannot add seconds if the filter is too weak. the adjustments are measured in full seconds on this kind of shooting, ie, 25 seconds is too hot let me try 20
you want step up rings to go from a 58mm lens UP TO 77mm, smaller to larger, always get any filter you buy in 77mm, no future problems with faster lenses, there are not many lenses out there larger than 77mm , even my wicked fast 50mm 1.2 is only a 72mm thread

 

[mSummers]

I didn't think about the bent light rays... good point

 

[jbwolffiv]

Thanks for the advice. ; I decided to wait, somewhat due to the price and the other being B&H saying it usually ships in 7-14 days. ; I am going to give another go at it with what I presently have. ; But that filter is now on my wish list!


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