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January 23, 2013
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A Question about Aperture...

:iconmeggylou:
meggylou Jan 23, 2013  Hobbyist General Artist
The Aperture on my Camera can only be used between F3.5 and F8. Is there any way I could extend the performance of the aperture??
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:iconmylifeinfocus:
MyLifeInFocus Jan 26, 2013  Hobbyist Photographer
I've shot long exposures on a point and shoot that can only go to F/8 as well, although limiting there are possibilities. With an overcast day early in the morning or late in the evening will give you minimal yet usable amounts of light. If you have a *fast* flowing stream rather than a calm one it won't take as long to blur the water properly. And the final solution that others have mentioned is get yourself a neutral density filter, something like this: [link]
(I haven't used Tiffen filters and cannot speak to their quality)
To which millimeter size you want, either get the smallest you can get away with (measure the diameter across the front of your lens) because that will be cheapest. Or keep in mind if you ever want to get a dSLR with that you may want to get a size that will fit your lenses in the feature should you choose to upgrade.
Hope this helps :) Hope you get some silky smooth water shots soon!
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:iconinstinctbylaw:
InstinctbyLaw Jan 23, 2013  Hobbyist General Artist
Aperture SCIENCE, that's all you need to know!
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:iconjoergens-mi:
joergens-mi Jan 23, 2013  Hobbyist Photographer
Your camera is a Canon PowerShot SX150 IS [link]

The available apertures are F3.4, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0 see page 67 in the english handbook.

The reason for that is that there is a relation between sensorsize and the maximal usable aperture typical values are Aperture 16-22 for 135mm Aperture 11-13 for APS.-C the relativ small sensor 1/2,3 inch would give you very blurred and unsharp pictures with aperture beyond 8.

This 8 will be nearly the same as an 16-22 at the 135mm format, so you get all of the Depth of field that is possible

The only way if there is to much light is to use a lower ISO-Value ora a a grey filter (i. e. Cokin :) :) )
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:iconmeggylou:
meggylou Jan 23, 2013  Hobbyist General Artist
sorry.. i wrote the wrong thing the other day. it is a canon sx160is
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:iconjoergens-mi:
joergens-mi Jan 23, 2013  Hobbyist Photographer
doesn't matter. The sensor is of the same size. I think you will find the same in your handbook of the camera
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:iconjoergens-mi:
joergens-mi Jan 23, 2013  Hobbyist Photographer
135mm means ''full frame'' 24*36mm
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:iconkingstephenarthur:
KingStephenArthur Jan 23, 2013  Student Photographer
hmmm, something doesn't sound right here. haha.

well we need more information. what camera are you using? what lens are you using? what camera mode are you shooting in? manual, AP, SP?
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:iconmeggylou:
meggylou Jan 23, 2013  Hobbyist General Artist
Canon sx160is = camera
Well it says on the camera.... canon zoom lens 16 x IS 5.0 - 80.0mm...
Modes... tried all of the above
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:iconkingstephenarthur:
KingStephenArthur Jan 23, 2013  Student Photographer
well I hate to say it but with that type of camera it may just be that you can only shoot between 3.5 - 8 :(
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:iconmeggylou:
meggylou Jan 23, 2013  Hobbyist General Artist
Aww.. I was gonna try and take photos of streams and stuff looking all silky... Oh well, thanks for caring :D
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