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ASK UNCLE RONNIE






            between frames and then use the set
            of bracketed exposures to create an
            HDR image in a computer.                            90°





             Canon 5D Mark II




                                                             Laptop viewing       as bright and vibrant as I see
                                                             angle                them on my computer monitor.
                                                                                  The differences are not that great,
                                                             I have an issue      but still, I do manage to see the
                                                             with my laptop. As   differences most of the time. Any
                                                             I change the angle   solutions?
                                                             of the screen in                       Bhooshan V, via email
                                                             relation to my eye
                                                             point, the display   I assume that you do your editing
                                                             varies in brightness.   using the Adobe RGB 1998 colour
                                                             Hence I don’t know   space. When you upload such images
                                                             if the edits that I do   to the web, you are likely to face the
                                                             in Photoshop are     problem you describe. This is due to
                                               correct. What should I do?         the fact that the web uses sRGB as its
            Which lens?                                           Ramesh Bhatt, Indor  colour space, whereas your images (I
            I wish to buy a wide-angle lens                                       am assuming) are in Adobe RGB 1998.
            for my Canon 5D Mark II D-SLR.     To view the laptop screen without the
            What would you recommend? Is       issues that you                             Try converting the colour
            lens speed an important factor to   mention, ensure                            space to sRGB when
            consider?                          that the screen                             uploading to the web
                               S. S. Singh, Amritsar  is perpendicular                     and see if the problem
                                               to your angle                               mitigates. This is how you
            The answer depends on what you     of sight. This                              can do that:
            need the wide-angle lens for.      means that the
                                               plane of the                                After completing your
            For weddings and similar events,   screen and your                             edits in Photoshop, go to
            I would recommend a 35mm or        eyes must create                            Edit > Convert to Profile.
            a 28mm lens; for landscapes and    a 90-degree                                 The Convert to Profile
            photographing in cramped up spaces,   angle (see above                         dialog box will open.
            a 28mm or 24mm. Landscapes can     sketch).
            also be covered using wider lenses like                                        In the Destination Space,
            20mm, 16mm etc but that demands    Web Images                                  under Profile, select
            greater skill level.               I regularly                                 sRGB as shown in the
                                               follow Smart                                printscreen. Click OK.
            If the wide-angle lens is required for   Photography                           You can then save the
            landscapes, the speed of the lens may   magazine and                           image using the Save As
            not matter; after all, we shoot most   have learnt                             command. |SP
            landscapes at narrow apertures like   a lot from it,
            f/11 or f/16 to get maximum depth of   especially when
            field. ‘Fast’ lenses allow us to throw   it comes to
            the background out of focus and so, it   image editing.
            may help during wedding shoots. But   I have a small
                                               problem. When
       Smart Photography  February 2018  greater the depth of field. A reason   images to the
            also keep in mind that wider the lens,
                                               I upload my
            why I would opt for a fast wide-angle
                                               web, I notice
            lens for weddings is because with fast
                                               that the images
            lenses, autofocussing is easier, and
      80    quicker.                           don’t remain
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