do you think i need to clean my sensor

hoochy1

hoochy1

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rite here is a photo settings were 1/500 /f 5.6 /113 mm / iso 3200 there seems to be more noise than i would norm see at 3200 iso or do you think i need to give my sensor a clean?




IMG_8290_1.psd by hoochy1, on Flickr
 
Cleaning your sensor will not reduce noise.
Take a pic of the sky at a high f stop- f16ish- to see if your sensor needs cleaning.
 
i will give that a bash tomorow ken i think its noise looks like i may be on the hunt for a new camera lol
 
No you don't need to clean your sensor,dirt on a sensor shouldn't create noise its more to do with the lighting :)
 
i thought it was noise but wasnt sure if it was a very dirty sensor, the light was poor and it was raining
 
To see if your sensor needs cleaning (BTW This isnt your problem at all) set your camera to about f32 and take a picture of a nice clear sky (or plain light clouds maybe) . view pic.. i doubt anyone will not see dirt from the sensor... but depends how much dirt :)
 
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oops double
 
cheers guys yea thought it was just lots of noise a 50-500 sigma and a 1100d aint a good combo in low light lol
 
Ditto on noise/lighting. Suggest shot taken at highest f stop for viewing dust on sensor. Some unusual black markings on lower (concrete) part of image (down from T on reg) but doesn't look like dust on sensor. Could be something on lens. Good luck in resolving.

PS Mk II Escort always looked very 'modern' compared to my Mk 1 G reg! Long time gone but happy memories!
 
ISO 3200 is very high, even a top end full frame a lot of people shy away from using it. On a lower end crop sensor camera you can expect a lot of noise.
Rather than a new camera you'd be better off investing in faster lenses. f/2.8 is going to buy you 2 stops over 5.6 for example and a way better idea than relying on high ISO noise which all cameras will have.
 
It's the darkest part of winter - days are short and light levels much lower than you realise.
Our eyes cope reasonably well and we become accustomed but cameras struggle especially with an action type shot.
 
hoochy1 said:
cheers guys yea thought it was just lots of noise a 50-500 sigma and a 1100d aint a good combo in low light lol
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a 7d is even worse in bad light ,in fact for the conditions described and the equipment used its a brilliant shot .leave the sensor alone unless your 100% competent at doing it
 
so this year im looking for a 70-200 f 2.8 (the holy grail lens lol )this is turning in to a expensive hobby lol
 
gnirtS said:
ISO 3200 is very high, even a top end full frame a lot of people shy away from using it. On a lower end crop sensor camera you can expect a lot of noise.
Rather than a new camera you'd be better off investing in faster lenses. f/2.8 is going to buy you 2 stops over 5.6 for example and a way better idea than relying on high ISO noise which all cameras will have.
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Great advice above. ISO 3200 is my very top max, I try to keep it below ISO 1600, preferably as low as possible. f2.8 or f4 lenses with help to reduce the ISO value, to ISO 800 at f2.8 and ISO 1600 at f4. Don't forget depth of field reduces as you open the aperture. As you currently use a 50-500mm lens have a think what focal lengths you currently use.
 
gnirtS said:
ISO 3200 is very high, even a top end full frame a lot of people shy away from using it. On a lower end crop sensor camera you can expect a lot of noise.
Rather than a new camera you'd be better off investing in faster lenses. f/2.8 is going to buy you 2 stops over 5.6 for example and a way better idea than relying on high ISO noise which all cameras will have.
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You're right about the lens - faster glass will give you more opportunities, but in the interest of accuracy - ISO 3200 is nothing really on a 'top end full frame'; I've no real issue with noise up to 12,800 ISO - sure it's there, but it rarely distracts from the image, and what with the noise reduction in LR now, it's not an issue even higher.

I'd always take a noisy but sharp image over above a blurry one and to be honest I've never yet had anyone of my none - photographic friends even comment on the noise - that's pretty much the preserve of fellow photographers!
 
I've got sensor dust at the moment. It,s always visible in the skys, like little blotches. I use the spot removed tool in pp to sort it but really should have the sensor cleaned. Is this easy to do yourself and if so has anyone got any links to a good guide for a 60D please?
 
Before resorting to a wet clean have you tried blowing it off with a bulb blower ? (do not use canned air as you'll wind up with little blobd of propellant all over the sensor) , theres also the option of a positively charged brush like the arctic butterfly.

if you've tried those to no avail your options are to wet clean yourself or to use a sensor cleaning service - I do the latter (using the while you wait service at fixaton in vauxhall) , but many choose to clean it themselves - Pookeyhead put a good guide to doing it on a recent thread i think
 
Furtim said:
You're right about the lens - faster glass will give you more opportunities, but in the interest of accuracy - ISO 3200 is nothing really on a 'top end full frame'; I've no real issue with noise up to 12,800 ISO - sure it's there, but it rarely distracts from the image, and what with the noise reduction in LR now, it's not an issue even higher.

I'd always take a noisy but sharp image over above a blurry one and to be honest I've never yet had anyone of my none - photographic friends even comment on the noise - that's pretty much the preserve of fellow photographers!
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Agree with all of this. Don't forget that using tripods, monopods or other camera steadying "tricks" are still important, even in these days of high ISO digital. Think back to the good old days when we were trying to get sharp images on 50 ISO Velvia! We'd step all the way up to 400 ISO for telephoto work!

ISO Vs Noise Vs f-stop Vs depth Vs shutter speed Vs focal length Vs pixel count Vs cropping is always a trade-off and compromise (that is admittedly lessened with $$$). The only thing that isn't a trade-off is that a steady camera will ALWAYS out-perform a shakey one.
 
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