Screw in Filters

NeilJB

NeilJB

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Neil
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Hi my first post on here! Instead of upgrading my Cokin P series to a Lee or Hitech 100mm system I have been considering just buying a Hitech Firecrest screw in 10 stop ND filter. I just really want a decent 10 stop filter rather than having to fork out for a whole new system. I'm conscious of the light leak I get using square filters so am hoping a screw in will combat this but am unsure if the results would be as good as if I upgraded to say a Lee Big stopper for example (ignoring the blue cast problem). Does a screw in suffer from vignetting perhaps? I will mostly be using this on a 24 - 105mm lens but occasionally on a 17 - 40mm (both 77mm thread).

Any thoughts on this would be greatly received.

Cheers
Neil
 
I occasionally use screw on filters and I haven't any issue to report. No vignetting. In fact I've stacked two many times also without issue. Can't say for certain that you wont get any issues with your particular lenses though, but I doubt it.

And, BTW, welcome :D
 
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Given focal lengths will gave no problem with screw-on filters. Things
are getting critical at shorter focal length as the barrel itself allows very
little latitude as to what may be added in the front.

For example, some shorter zoom will do just fine at their longer end but,
as one uses them going to the shorter end, vignetting will appear more
and more the closer one gets to the wider angle view. For that reason,
thin filters were introduced as well as plate filters. The thin are screw-on
type and the plates are mounted on a holder.

The purchase of one or the other depends on a specific lens but just be
aware that testing for vignette is the only way to make the right decision.

I use both systems. I prefer by far the screw-on as it is simpler and safer
but it has limits. I use the plates on the 14–24 ƒ2.8 mainly because of its
bulging front glass.
 
Thank you so much! Your help was greatly appreciated. Ordered my new filter today.
 
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