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plasticpaddy

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hi i am new to photography and have just bought my first dslr a canon EOS 30D, this is probably going to sound stupid but i was wondering is there any type of filter i can buy to start taking daytime long exposure shots or can you just take them of an evening:confused:

oh the lens is canon efs 17 - 85mm

any help would be greatly appreciated

cheers

jonty
 
hi i am new to photography and have just bought my first dslr a canon EOS 30D, this is probably going to sound stupid but i was wondering is there any type of filter i can buy to start taking daytime long exposure shots or can you just take them of an evening :thinking:

oh the lens is canon efs 17 - 85mm

any help would be greatly appreciated

cheers

jonty
 
Yes. you need a strong ND filter. If you plan on doing long exposures in bright daylight you will probably want an 8 to 10 stop filter. (1 stop = double the expsure time once). With my 10 stop I can get about 20 seconds on a bright day.
 
Got to agree with Matt. Don't get a graduated ND filter by mistake, though!
Andy.
 
I agree with both of you!
but not!


paddy, what are you going to shoot??
you can just get a round, screw in filter ND8 or ND4 for your lens thread size.

landscapes?? if so, get a filter holder, you'll need one that holds 85mm filters
then you can get ND 4 or ND8 filters that fit this and then some ND grads that go in there too.
so you can get both things going on...:)
 
Welcome Paddy :)

A neutral density filter is what you need, but they vary from two or three stops of extra stops exposure time, to over ten. A ten stopper will increase your expsore time from 1/1000sec to 1sec. When the light is low, it can easily run into several minutes.

The strength of filter you need depends on the effect you're after, and the ambient light level. Only you can decide on that but there are a lot of recent threads about this, with examples.

Costs vary from a couple of quid for the glass from a welding mask, to £100 or so for a B+W ten stop ND filter.
 
thanks for the replies people, i would like to try a long exposure in the city centre and also as i do a lot of fishing round the world
i would like something for them seaside shots as well, if anyone could recommend a couple of the screw on ones for the canon EFS 17-85mm i would be very grateful

cheers

jonty:)
 
I bought a cheap ND8 screw in filter from ebay until I could afford a proper filter holder, like the cokin. I think it cost me £4.50ish and has worked fine for me.

A couple of these (Various strengths if you want) stuck together could work great if you are looking for a cheap option. There is also a popular 'welders glass' thread on the go, you might want to check that out.
 
plasticpaddy said:
thanks for the replies people, i would like to try a long exposure in the city centre and also as i do a lot of fishing round the world
i would like something for them seaside shots as well, if anyone could recommend a couple of the screw on ones for the canon EFS 17-85mm i would be very grateful

cheers

jonty:)
Click to expand...

When it comes to it there is actually not a lot of choice if you want really long exposures. It boils down to a B+W ten stopper, or B+W six stopper. The only other filter that gets near is the Hoya X400 (nine stops) which is only available special order.

Here you go - B+W tens stops £80 in 67mm http://www.warehouseexpress.com/buy-b-w-67mm-nd-110-3-0-sh-filter/p1013507

Edit: filter darkness is expressed in various ways. ND8 is only three stops, or 0.9 optical density. 10 stops is ND1024 in the same parlance, or 3.0 in optical density. If you stack filters together, you will quickly run into vignetting problems with wide lenses, and potentially image quality issues also.
 
HoppyUK said:
When it comes to it there is actually not a lot of choice if you want really long exposures. It boils down to a B+W ten stopper, or B+W six stopper. The only other filter that gets near is the Hoya X400 (nine stops) which is only available special order.

Here you go - B+W tens stops £80 in 67mm http://www.warehouseexpress.com/buy-b-w-67mm-nd-110-3-0-sh-filter/p1013507

Edit: filter darkness is expressed in various ways. ND8 is only three stops, or 0.9 optical density. 10 stops is ND1024 in the same parlance, or 3.0 in optical density. If you stack filters together, you will quickly run into vignetting problems with wide lenses, and potentially image quality issues also.
Click to expand...


thanks hoppyuk i have just ordered this, how long of an exposure would you get on say a overcast day or is it just a case of trial and error



thanks again everyone for the replies:thumbs:
 
plasticpaddy said:
thanks hoppyuk i have just ordered this, how long of an exposure would you get on say a overcast day or is it just a case of trial and error

thanks again everyone for the replies:thumbs:
Click to expand...

Paddy, there's a lot of info in the recent threads about ND filters here.

If your exposure on a dull kind of day is 1/125sec at a mid-range aperture and ISO, then when you fit a 10 stop ND filter it is going to be 10 stops longer, ie eight seconds.

You can then vary this either way by changing the f/number and ISO to suit. You should have enough scope to pull it back to half a second easily enough, or stretch is out to one or two minutes.
 
thanks hoppyuk, i thought boating was expensive but it seems like i opened a can of worms with this photography lark:lol::lol::lol:


if ya got an enemy buy him a camera:lol::lol:
 
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