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Digital SLR cameras
- Thread starter Jay
- Start date
The dust is more than likely on your sensor rather than being on either end of the lense and it's highly unlikely to be inside the lense.
To see if the dust is on you sensor try this...go outside, stop the aperture down to about F22, set the shutter speed accordingly and take a picture of the sky. If there's any dust on your sensor it will show up clear as day on the picture as grey/black spots all over the picture.
My sensors have recently been cleaned though I now have a rather large hair on one of em which you can see here... http://www.craigcmartin.pwp.blueyonder.co.uk/dustonsensor.jpg and quite a few spots too.
try it and let me know how you get on
Regards
To see if the dust is on you sensor try this...go outside, stop the aperture down to about F22, set the shutter speed accordingly and take a picture of the sky. If there's any dust on your sensor it will show up clear as day on the picture as grey/black spots all over the picture.
My sensors have recently been cleaned though I now have a rather large hair on one of em which you can see here... http://www.craigcmartin.pwp.blueyonder.co.uk/dustonsensor.jpg and quite a few spots too.
try it and let me know how you get on
Regards
106 GTi
Cheers guys - No it is definatley in the lens itself. Reading on the net is a common 18-55 kit lens problem. They have little or no weather sealing by the sounds of it. There is a thin layer all over the inside of the front glass of the lens. I have now replaced it with a 28-105 lens now anyway, and will get something a little wider at a later date.
RS 200
Taken with my 70-300 lens on a Nikon D70s.
TT DECKS, how do you find the 2x adapters, worth investing for track stuff??
Chris
RS 200
dave182 said:
I know, I was pretty gutted at chopping about an inch off the nose, but was still really pleased with it as it was the first time I had used my DSLR at the track.
Plus it aint a bad result considering I was trying to get the side on shot of something that was going past me at about 130+ mph.
Edit:
heres a Renault for good measure, this one has been cropped, but still kept the quality of the original image.
Last edited:
RS 200
TT DECKS said:
Cheers, might see if I can try out a converter at the local camera shop to see if it would be an advantage.
As you say the burst is a very nice feature, infact the Alonso / Renault picture was taken using a burst. The Nikon D70s, which is what I have takes 3 FPS so I just held the shutter down and followed it around the corner.
Chris
106 GTi
Leeds_VTO said:
I have the Sigma its not bad, but very soft over 200mm. Mate has a Tamron but a 70-300 so no real comps.
Good lens reviews here http://www.fredmiranda.com/
I got annoyed with Photobucket, buy some we spaces and use Photoshop to make automated web gallerys.
RS 200
Yeah was at the April test a couple of weeks ago now. There was a really good attendance from the teams and there was a lot of spectators there to for that time of the year.
Rest of the pics can be seen here: http://s130967247.websitehome.co.uk/motorsport/testing260406/index.html
<< This one wasnt easy to take with the heavy SLR at the end of my arm and trying to get a good aim in the few seconds I had available, again the burst came in handy to get a few shots.
Chris
Rest of the pics can be seen here: http://s130967247.websitehome.co.uk/motorsport/testing260406/index.html
<< This one wasnt easy to take with the heavy SLR at the end of my arm and trying to get a good aim in the few seconds I had available, again the burst came in handy to get a few shots. Chris
Mr2 Roadster
Quickly, Canon IS lens have two IS settings. Number 1 is for general handheld movement and should be turned off for tripod use. And Number 2 which is for tracking moving objects. When tracking moving objects you need to select your tracking sensitivity accordingly in the custom functions menu.
IS isn't something that is that helpful apart from when used at shutter speeds under 160/250 as it does actually interfer with the sharpness of your picture.
Converters, 1.4x and 2.0x both visably reduce the quality of your pictures as well. This is very noicable on zoom lens where as fixed/prime lens suffer less but it's still noticable.
Zoom lens are normally sharp at either end of the focal distances, eg, 70-200mm will be best at 70mm and 200mm but may struggle at the 130mm distances. That said the 70-200mm F2.8 is the best zoom lens Canon ever made and is sharp all the way through.
A good affordable lens for those on a budget is the 70-200mm F4 which is very cheap secondhand and not too bad new either.
Hope this may clear up any questions in this thread.
IS isn't something that is that helpful apart from when used at shutter speeds under 160/250 as it does actually interfer with the sharpness of your picture.
Converters, 1.4x and 2.0x both visably reduce the quality of your pictures as well. This is very noicable on zoom lens where as fixed/prime lens suffer less but it's still noticable.
Zoom lens are normally sharp at either end of the focal distances, eg, 70-200mm will be best at 70mm and 200mm but may struggle at the 130mm distances. That said the 70-200mm F2.8 is the best zoom lens Canon ever made and is sharp all the way through.
A good affordable lens for those on a budget is the 70-200mm F4 which is very cheap secondhand and not too bad new either.
Hope this may clear up any questions in this thread.
...and I don't understand half, anyone recommend any good ditigal/dsrl guides?
106 GTi
iPap said:
Any comparison examples with and without a 1.4x in use? Some people say they effect qulaity lots, some say hardly noticeable?
Using my 70-200 4L and 1.4x Canon extender, my pictures will still be better than with my cheap Sigma 70-300 which is soft over 200mm anyway though?
Cheers
Rich
top of the pyramid
thanks for the help gone for the tamaron 28-300 been looking on the specs and it says if your camera has a aps-c sensor it will take it up to a max of 465mm "When used with APS-C size digital SLR cameras, the lens provides an angle of view equivalent to approximately 44-465mm" tanken from the web site, i know it wont quite be that much i think the sensor on nikon allows 1.6x and cannon 1.7x something like that.
Dont want to get addicted to buying lens, so easy to do though
Dont want to get addicted to buying lens, so easy to do though
