my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Community   » Film-Yak   » DX4900 query for John Pytlak.

Author Topic: DX4900 query for John Pytlak. John Spooner Expert Film Handler Posts: 186 From: South Australia, Australia Registered: Jan 2003 posted 02-23-2003 08:52 AM                     Dear John, In your professional opinion, what would be the best setting for making 8x10 prints. The 2.2 megapixel or the 4 megapixel high compression setting, seeing the file size is almost the same for either. Regards. John Spooner.  |  IP: Logged Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 02-23-2003 10:45 AM                    I'm not John but I believe the compressed file from the 4M image contains more usable data than the similarly sized 2M uncompressed file and ought to produce the better picture, unless there is some aspect of the particular picture that is being particularly degraded by the compression algorithim. Since you're talking about different settings on the same 4M camera why not lock the camera down on a tripod and take a few sample photos at both settings, dump them to your computer and upsize the smaller image to the same pixel dimensions as the larger using Photoshop or similar software? Then pick an area of high detail and zoom your view into great enlargement on both versions and compare them side by side. Surely there will be more detail in the large image, despite it having been compressed and decompressed.  |  IP: Logged Daryl C. W. O'Shea Film God Posts: 3977 From: Midland Ontario Canada (where Panavision & IMAX lenses come from) Registered: Jun 2002 posted 02-23-2003 01:18 PM                        The camera uses lossy JPEG compression, so it's never really uncompressed. However, the Kodak DX series cameras (actually most, if not all of their cameras) are pretty good about JPEG compression. You'll see the filesize increase drastically for images that 'have a lot of different stuff & colour'. So you'd probably be best using the 4MP High Compression. Of course you'd be best to buy yourself a larger memory card. They are cheap compared to what you would have paid for that camera. Editing the subject title so that you spell John's last name correctly might get a faster response too. [ 02-23-2003, 05:16 PM: Message edited by: Daryl C. W. O'Shea ]  |  IP: Logged John Spooner Expert Film Handler Posts: 186 From: South Australia, Australia Registered: Jan 2003 posted 02-24-2003 08:08 AM                     Dear Steve and Daryl. Thank you for your interest in this matter and for information supplied.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 02-25-2003 03:01 PM                        In general, the more data the better. Compression artifacts are scene-dependent. For 8x10 inch prints, I'd go for the 4 megapixel setting.  |  IP: Logged John Spooner Expert Film Handler Posts: 186 From: South Australia, Australia Registered: Jan 2003 posted 02-27-2003 11:49 AM                     Dear John, thank you for your reply. The definition on the 4900 is exceptional, I am currently using the 4mp (high comp) setting as per advice received. Thank you to yourself,Steve and Daryl. John Spooner.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 02-27-2003 02:12 PM                        Information about digital photography: http://www.kodak.com/US/en/digital/dlc/index.jhtml http://www.kodak.com/global/en/service/products/index.jhtml http://www.kodak.com/eknec/PageQuerier.jhtml  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.