Another try at silver

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Maineman750
    Administrator

    • Apr 2011
    • 12069

    #31
    Originally posted by silver1985
    Maineman: I am curious of the file extension that is indicated on your 3.5 Mb image file. (i.e. jpeg, tiff, etc. ?)
    It is a jpeg file.
    https://www.ebay.com/sch/maineman750...75.m3561.l2562

    Comment

    • Maineman750
      Administrator

      • Apr 2011
      • 12069

      #32
      Originally posted by jfines69
      The 3k X 4k is the total number of pixels in an image... 3k times 4k is 12 megepixels... You also have the Pixels Per Inch (PPI)... PPI will adjust the width and height of an image... If you set PPI at 72 PPI youe image would be 3000/72 = about 42" by 4000/72 = about 55" if using the inch scale... Increase the PPI the smaller the image will be when viewed... Hope that helps a little!!!
      Well, it just confirms what I thought about pixels, but the file size doesn't add up
      https://www.ebay.com/sch/maineman750...75.m3561.l2562

      Comment

      • ray_parkhurst
        Paid Member

        • Dec 2011
        • 1855

        #33
        I see a bit of variation in your focus. How are you determining when you are in focus?
        Builder of Custom Coin Photography Setups. PM me with your needs or visit http://macrocoins.com

        Comment

        • Maineman750
          Administrator

          • Apr 2011
          • 12069

          #34
          Originally posted by ray_parkhurst
          I see a bit of variation in your focus. How are you determining when you are in focus?
          Just looking at my computer screen, Ray..I'm using Liveview.......if you can give me a tip on how to focus, it would be appreciated, I feel like I'm struggling with it
          Last edited by Maineman750; 04-09-2017, 01:50 AM.
          https://www.ebay.com/sch/maineman750...75.m3561.l2562

          Comment

          • jfines69
            Paid Member

            • Jun 2010
            • 28623

            #35
            Originally posted by Maineman750
            Well, it just confirms what I thought about pixels, but the file size doesn't add up
            On jpeg files you can set the image quality from 0% to 100% when saving it... 100% will give you the larger file!!!
            Jim
            (A.K.A. Elmer Fudd) Be verwy verwy quiet... I'm hunting coins!!! Good Hunting!!!

            Comment

            • Maineman750
              Administrator

              • Apr 2011
              • 12069

              #36
              Originally posted by jfines69
              On jpeg files you can set the image quality from 0% to 100% when saving it... 100% will give you the larger file!!!
              Well...is that a setting in my camera software ? Because I don't have an option to save it except when I edit with paint.net
              https://www.ebay.com/sch/maineman750...75.m3561.l2562

              Comment

              • stoneman227
                Member
                • Jun 2012
                • 2086

                #37
                Originally posted by Maineman750
                Well...is that a setting in my camera software ? Because I don't have an option to save it except when I edit with paint.net
                This would be an option in paint , when saving your post processing work


                John
                So sad ... My reverse consumption engine was a broken fuel gauge ... gonna look at coins now. John

                Comment

                • ray_parkhurst
                  Paid Member

                  • Dec 2011
                  • 1855

                  #38
                  Originally posted by Maineman750
                  Just looking at my computer screen, Ray..I'm using Liveview.......if you can give me a tip on how to focus, it would be appreciated, I feel like I'm struggling with it
                  When you are in Live View, it's hard to judge critical focus, especially if you're using smaller apertures. Best way to focus is to use the Zoom View function (magnifier). This allows you to view at 100% pixel detail, which is much sharper than the full Live View screen. This makes critical focusing much, much easier.
                  Builder of Custom Coin Photography Setups. PM me with your needs or visit http://macrocoins.com

                  Comment

                  • Maineman750
                    Administrator

                    • Apr 2011
                    • 12069

                    #39
                    Originally posted by ray_parkhurst
                    When you are in Live View, it's hard to judge critical focus, especially if you're using smaller apertures. Best way to focus is to use the Zoom View function (magnifier). This allows you to view at 100% pixel detail, which is much sharper than the full Live View screen. This makes critical focusing much, much easier.
                    Thank you Ray, I am copying these tips to a word file this time so I don't have to rely on memory.....do you have any suggestions on aperture sizes ? I have been changing mine simply to see what looks best in Liveview
                    https://www.ebay.com/sch/maineman750...75.m3561.l2562

                    Comment

                    • Maineman750
                      Administrator

                      • Apr 2011
                      • 12069

                      #40
                      Originally posted by stoneman227
                      This would be an option in paint , when saving your post processing work
                      John
                      Which brings me full circle as to file size.....when I take a picture with Liveview, it automatically saves it and it's about 3.5 MB at 4000x3000 pixels......according to jfines and 1985silver, it should be 12MB when it is 4000x3000....so I'm a bit confused
                      https://www.ebay.com/sch/maineman750...75.m3561.l2562

                      Comment

                      • jfines69
                        Paid Member

                        • Jun 2010
                        • 28623

                        #41
                        Originally posted by Maineman750
                        Well...is that a setting in my camera software ? Because I don't have an option to save it except when I edit with paint.net
                        Your camera should have a setting for to adjust the image size... Some cameras say Large file, medium file, small file and others list it as pixel x pixel size... My Canon can save as a RAW and jpeg, RAW or jpeg... I just use jpeg at its max then edit it to the dimensions I need!!!
                        Jim
                        (A.K.A. Elmer Fudd) Be verwy verwy quiet... I'm hunting coins!!! Good Hunting!!!

                        Comment

                        • Maineman750
                          Administrator

                          • Apr 2011
                          • 12069

                          #42
                          Originally posted by jfines69
                          Your camera should have a setting for to adjust the image size... Some cameras say Large file, medium file, small file and others list it as pixel x pixel size... My Canon can save as a RAW and jpeg, RAW or jpeg... I just use jpeg at its max then edit it to the dimensions I need!!!
                          My camera settings are jpeg and high quality, the size is 4000x3000, but the file size is 3.5MB
                          https://www.ebay.com/sch/maineman750...75.m3561.l2562

                          Comment

                          • stoneman227
                            Member
                            • Jun 2012
                            • 2086

                            #43
                            I can say that the only thing I shoot is raw. The amount of detail in the highlights and in the shadows that a camera discards when it saves a shot to jpeg is scary.

                            John
                            So sad ... My reverse consumption engine was a broken fuel gauge ... gonna look at coins now. John

                            Comment

                            • ray_parkhurst
                              Paid Member

                              • Dec 2011
                              • 1855

                              #44
                              Originally posted by Maineman750
                              Thank you Ray, I am copying these tips to a word file this time so I don't have to rely on memory.....do you have any suggestions on aperture sizes ? I have been changing mine simply to see what looks best in Liveview
                              My standard recommendation has always been to use f8 for Dollars and f5.6 for Cents. This is to get maximum sharpness at pixel level so you can crop the shots to show details. However, if you always plan to show the full size image, and will always downsize the image to 1296x864 (or square cropped to 864x864 or smaller) for publishing on the web, then I'd recommend:

                              Dollars: f11 or f16
                              Quarters: f11
                              Dimes/Cents: f8

                              When shooting Dollars at f16, you may want to focus at f8 using Zoom View, then change to f11 or f16 for the shot.

                              edited to add: I thought you were using a Rebel XS, which is why I gave specific image size recommendation. Generally, you want to downsize by integers to maintain sharpness. For your 4000x3000 image, I'd recommend downsizing to 1000x750 for web publishing.
                              Last edited by ray_parkhurst; 04-10-2017, 07:40 AM.
                              Builder of Custom Coin Photography Setups. PM me with your needs or visit http://macrocoins.com

                              Comment

                              • Maineman750
                                Administrator

                                • Apr 2011
                                • 12069

                                #45
                                Originally posted by ray_parkhurst
                                My standard recommendation has always been to use f8 for Dollars and f5.6 for Cents. This is to get maximum sharpness at pixel level so you can crop the shots to show details. However, if you always plan to show the full size image, and will always downsize the image to 1296x864 (or square cropped to 864x864 or smaller) for publishing on the web, then I'd recommend:

                                Dollars: f11 or f16
                                Quarters: f11
                                Dimes/Cents: f8

                                When shooting Dollars at f16, you may want to focus at f8 using Zoom View, then change to f11 or f16 for the shot.
                                Thanks again, Ray....it's good to know that I've actually done a few things correctly for my full coin shots, but the finer details would have eluded me....I'm going to have a pretty nice word document with all of the tips I'm getting from everybody....maybe I'll make a sticky when I feel like I have enough to walk a beginner like me through taking full coin shots
                                https://www.ebay.com/sch/maineman750...75.m3561.l2562

                                Comment

                                Working...