 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| PhotoKB HomeDiscussion Groups Digital Photography Digital PhotoDSLR CamerasZLR CamerasPoint & Shoot CamerasFilm Photography 35 mmLarge FormatMedium formatDarkroomFilm and LabsOther EquipmentPhoto Technique Nature PhotographyPeople PhotographyTechnique GeneralGeneral Photo Topics General TopicsAustralian PhotographyUK PhotographyDirectoryPhoto Clubs |
Photo Forum / General Photo Topics / General Topics / May 2007Help with G7 decision
I am looking to upgrade from my Canon Powershot S40 to the Powershot G7, however having looked at the review of the camera on DPReview I am concerned about image noise. Is there any of you good folk out there with a G7 that could take a few sample images for me please, so that I can judge how much of an issue this would be. What I am looking for is a close up picture of something like fur (maybe a cuddly toy? go on....you know you've still got that one from your youth ;-) ) with a plain background, either light, or dark (or both maybe?), so I can see the effect of the noise and the effect of the noise reduction on the fur. I was happy with the details of this camera until a friend of mine pointed out the low noise of the Fujifilm F31fd, which is outstanding. I have done some comparision shots on my S40 and I can see the noise kicking in around ISO 200, but it's not too bad, so if the G7 is the same, or better, then I'd be happy with it. Most of my images will only ever be printed out in 6x4 or 7x5, so I am not sure whether the noise will be an issue at all. However if it turns out the G7 is too noisy then I'm stuck, because only the G7 has all the features I want i.e. manual control, aperature priority, flash control, 35(ish) to 200(ish) mm zoom, viewfinder and image stabilizer. Thanks for reading this post. Golfboy1971 http://www.pbase.com/swandy/poco_at_bb_kings_2007&page=all Taken at BB Kings club in NY City. All images with G7 at ISO 800. No post processing of any kind. ISO 1600 generally is pretty bad and needs some noise reduction in post processing. The 3200 Mode is useful except it only produces a 2 MP image and you can't make adjustments to the metering (only evaluative) and to the exposure compensation. This shot here says it has a focal length of 44.4mm. I never used a small camera like this, but only an SLR, so what is this equal to in terms of 35mm photography? Is this number smaller because the actual lens is smaller? Are ther any equivalencies here? A table or something? Joe. > This shot here says it has a focal length of 44.4mm. I never used a small > camera like this, but only an SLR, so what is this equal to in terms of 35mm > photography? Is this number smaller because the actual lens is smaller? Are > ther any equivalencies here? A table or something? > > Joe. The *sensor* is smaller than a 35mm frame. From the following: http://www.canon.co.uk/For_Home/Product_Finder/Cameras/Digital_Camera/PowerShot/ PowerShot_G7/index.asp?specs=1 Focal Length 7.4 - 44.4 mm (35mm equivalent: 35-210mm) And before splashing out your money, go to a shop where you can handle a G7 to try to be sure you will enjoy using it. Buying by specification only is not effective IMHO. >> This shot here says it has a focal length of 44.4mm. I never used a small >> camera like this, but only an SLR, so what is this equal to in terms of [quoted text clipped - 14 lines] > a G7 to try to be sure you will enjoy using it. Buying by > specification only is not effective IMHO. Thanks for that little conversion. I had a feeling it might be that, but wasn't too sure. About the G7...'I'd miss the grip, but could get over it if only for the quality of shot it takes. It's pretty much fully-featured too and at the price, seems like a great camera to buy. Cheers. Joe. Steven, Thanks very much pointing me to those photos. I can see that the black background is subject to noise due to the high ISO, although probably not too bad. For the type of photos they are I think they're very well taken and quite bright on the faces, which is excellent. I think I would have been perfectly happy with the images from the G7 if my friend hadn't pointed out the quality of the Fujifilm F31fd .... :-| I guess you are an owner of a G7, so how do you find the camera overall? Does the image stabiliser help you to reduce the ISO rating a bit when taking indoor photos? and hence reduce the noise? Thanks again. Joe, in answer to your question the focal length (all those techies out there please correct me if I'm wrong) is a figure given in relation to the effective distance from the end of the lens to that of the film plate.... obviously it would not be good to have huge long lenses on cameras, physically, so by adding lots of extra lens elements you can reduce the physical length of the lens whilst at the same time keep a high "effective" lens focal length. When the lens is attached to the camera there is a certain distance between the back end of the lens and the actual film plate ..... in digital photography the distance from from the back of the lens to the CCD is much smaller and hence the figures you see for focal length are tiny compared to that of 35mm cameras. If you go onto a site like "DPReview.com" they give the equivalent 35mm focal length to help people like us. To give you an example, my Canon Powershot S40 has "7.1-21.3mm" written on the lens, but the 35mm equivalent is stated as 35-105mm. Hope this helps and hope my memory on this bit was correct! > Steven, > [quoted text clipped - 27 lines] > equivalent is stated as 35-105mm. > Hope this helps and hope my memory on this bit was correct! I got it. Thanks for the explanation. Joe. > I am looking to upgrade from my Canon Powershot S40 to the Powershot > G7, however having looked at the review of the camera on DPReview I am [quoted text clipped - 22 lines] > > Golfboy1971 Hiya, I've posted (temporarily) a few samples at http://www.polhill.vispa.com/g7_samples/ I *meant* to choose 400 for the first few, but accidentally left it in "easy" mode so they're Auto. I have no idea what it chose, but I suspect it was 100 or 200... There is a 400 ISO sample there and a couple of 80 ISO samples just to show what it can do. The 3648 x 2736 originals are there as well so you can get an feel for what the full size pictures are like. Please feel free to download them and use them for what you want, print them, etc., but please do so within the next week as I'll take them back down next week. Rich That's excellent, thanks Richard and thanks to everyone else. I've managed to locate a camera at a local store, so will go and check it out at the weekend. I am also considering the option of buying a camera like the Fujifilm that has an accessory teleconvertor to turn the 35-1xx focal length into more like 35-2xx overall. Has anyone had any experiences with using these teleconvertors that clip or screw onto the front of compact cameras? Thanks Philip > That's excellent, thanks Richard and thanks to everyone else. I've > managed to locate a camera at a local store, so will go and check it [quoted text clipped - 7 lines] > > Philip I haven't any experience using one but there is one available for the G7 too. |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.