Re: istDS Noise @ ISO 3200 - again
Shel, I have a feeling that a firmware upgrade may have helped, with the early versions of the D at least. Soon after getting the camera I took some shots in available dark at 3200 which turned out very noisy - not unusable but definitely not what I wanted! The next day, having forgotten that I'd left the ISO set to 3200, I shot some landscapes, which were Ok but definitely looked grainy. However, more recently I deliberately shot at the top ISO and was very pleasantly surprised at the results- definitely useable. More technically-minded PDML-ers will no doubt tell me if that were possible! John Coyle Brisbane, Australia - Original Message - From: Shel Belinkoff [EMAIL PROTECTED] To: PDML PDML@pdml.net Sent: Thursday, September 14, 2006 1:21 PM Subject: istDS Noise @ ISO 3200 - again Whoops! Forgot the URL There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. It shows Marnie looking at her Optio. I made no adjustments to the image other than to correct the white balance. The image is just how it came from the RAW converter in Photoshop CS. All I did was crop a section of it for upload. It's a large file - 900 kb. How's the noise? http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Here's the tech - EXIF info Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 Shel -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
Re: istDS Noise @ ISO 3200 - again
It's excellent. The Pentax only gets noisy when the image is underexposed at high ISO. I think users frequently try for 1600 when they really need 3200, hence the reputation for noise. But I too have found that my *istD is remarkably free of noise at high ISO. I expect even better performance from the 10D, despite the higher resolution. Paul On Sep 13, 2006, at 11:21 PM, Shel Belinkoff wrote: Whoops! Forgot the URL There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. It shows Marnie looking at her Optio. I made no adjustments to the image other than to correct the white balance. The image is just how it came from the RAW converter in Photoshop CS. All I did was crop a section of it for upload. It's a large file - 900 kb. How's the noise? http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Here's the tech - EXIF info Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 Shel -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
Re: istDS Noise @ ISO 3200 - again
If you check the EXIF info, you'll see that the exposure was +0.70 I'm sure that, had I been shooting more to the left the noise would have been quite bad. I've had good results in many situations @ 1600 and 3200, but, as Godders mentioned in another message here, underexposure will make the image, especially at higher ISO settings, quite noisy. I suspect quite a number of people treat their DSLR exposures as though they were shooting slide film - exposing for the highlights. That often causes under or marginal exposure in other parts of the image, and generates more noise. I think when using RAW you've sometimes got to expose a little differently. Shel [Original Message] From: Paul Stenquist It's excellent. The Pentax only gets noisy when the image is underexposed at high ISO. I think users frequently try for 1600 when they really need 3200, hence the reputation for noise. But I too have found that my *istD is remarkably free of noise at high ISO. I expect even better performance from the 10D, despite the higher resolution. Shel Belinkoff wrote: There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
Re: istDS Noise @ ISO 3200 - again
John, The less light there is, the worse the noise will be. In available dark, even 400 will be noisy, while 3200 si acceptable with enough light. -Adam John Coyle wrote: Shel, I have a feeling that a firmware upgrade may have helped, with the early versions of the D at least. Soon after getting the camera I took some shots in available dark at 3200 which turned out very noisy - not unusable but definitely not what I wanted! The next day, having forgotten that I'd left the ISO set to 3200, I shot some landscapes, which were Ok but definitely looked grainy. However, more recently I deliberately shot at the top ISO and was very pleasantly surprised at the results- definitely useable. More technically-minded PDML-ers will no doubt tell me if that were possible! John Coyle Brisbane, Australia - Original Message - From: Shel Belinkoff [EMAIL PROTECTED] To: PDML PDML@pdml.net Sent: Thursday, September 14, 2006 1:21 PM Subject: istDS Noise @ ISO 3200 - again Whoops! Forgot the URL There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. It shows Marnie looking at her Optio. I made no adjustments to the image other than to correct the white balance. The image is just how it came from the RAW converter in Photoshop CS. All I did was crop a section of it for upload. It's a large file - 900 kb. How's the noise? http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Here's the tech - EXIF info Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 Shel -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
istDS Noise @ ISO 3200 - again
Whoops! Forgot the URL There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. It shows Marnie looking at her Optio. I made no adjustments to the image other than to correct the white balance. The image is just how it came from the RAW converter in Photoshop CS. All I did was crop a section of it for upload. It's a large file - 900 kb. How's the noise? http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Here's the tech - EXIF info Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 Shel -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
Re: istDS Noise @ ISO 3200 - again
Considering it's ISO 3200, the noise is good. That is speaking in relative terms. I just find to my eyes, shots at such high ISO aren't satisfying, hence I just don't use those settings. It's just personal preference. James - Original Message - From: Shel Belinkoff [EMAIL PROTECTED] To: PDML PDML@pdml.net Sent: Thursday, September 14, 2006 1:21 PM Subject: istDS Noise @ ISO 3200 - again Whoops! Forgot the URL There were some comments about how noisy ISO 3200 is with the Pentax DSLR's. Here's a large section from a photo I took last month @ Godders' reception. It shows Marnie looking at her Optio. I made no adjustments to the image other than to correct the white balance. The image is just how it came from the RAW converter in Photoshop CS. All I did was crop a section of it for upload. It's a large file - 900 kb. How's the noise? http://home.earthlink.net/~my-pics/IMGP4540-sect.jpg Here's the tech - EXIF info Lens SMCP-A 50/1.4 @ f/2.8, 1/20 sec handheld Model - PENTAX *ist DS Orientation - Top left XResolution - 330 YResolution - 330 ResolutionUnit - Inch Software - Adobe Photoshop CS Windows DateTime - 2006:09:08 14:27:06 ExifOffset - 220 ExposureTime - 1/20 seconds FNumber - 2.80 ExposureProgram - Aperture priority ISOSpeedRatings - 3200 DateTimeOriginal - 2006:08:19 20:27:53 ShutterSpeedValue - 1/20 seconds ApertureValue - F 2.80 ExposureBiasValue - 0.70 MeteringMode - Center weighted average Flash - Not fired, compulsory flash mode ColorSpace - sRGB ExifImageWidth - 1000 ExifImageHeight - 800 Shel -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
