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Use Filters or Not?
          There is a constant debate going
          on whether to use filters or not.
          Some say that filters degrade the
          image quality; others don’t care.
          What is your take on this?
                              Aslam, via email

          Yes, the world is divided on this issue.
          As for me, I use a filter on each and
          every lens of mine.
          Cheap quality filters will definitely
          affect image quality. In the tests
          that I have counducted, I have seen
          no perceptible difference between
          pictures shot with and without
          filters. Keep in mind that I do not use
          cheap filters.                    A 6300 ISO Noise Limit
                                            A friend of mine has given me his
          Even if there is a very slight decrease   Sony A6300 camera to use. Up to   Brighter images on
          in image quality (I’ll repeat that I see   what ISO can I go without noise?  camera LCD
          no difference when using high-end               Joseph D’Souza, Nagpur
          filters), I will risk that rather than                               I observe that my images on the
          risking scratching the front element   This is not an easy question to   camera LCD look brighter than on
          of the lens.                      answer because different users     my computer screen. I am unable to
                                            have different ‘tolerance levels’   get a clear-cut idea which is at fault.
          I recently saw a video where the   to digital noise. Keep in mind that              Anupam Vaidya, Mumbai
          photographer actually scratched the   noise is a part and parcel of every
          front surface of his lens and then   digital image; just because you   I had answered an almost similar
          went on to claim that his images were   don’t notice it does not mean that   query some time ago. Generally,
          not affected in any way even after   there is no noise. But as long as the   all camera LCDs are overly bright.
          that abuse. I have written off that   noise does not make your photo   Fortunately, most cameras allow us to
          photographer!                     look bad, you should not worry     control the degree of brightness of the
                                            about it.                          LCD.
          Third Party Products
          Is it okay to use third party camera   Noise could be caused due to   Load your images on your computer
          batteries? Is it okay to use third   several factors – underexposure,   and place the same memory card
          party battery grips?              high ISO setting (worse would      back into your camera. Navigate to
                           Avinash G, Via email   be underexposure with high ISO   the same image on the camera that
          Given an option, I would only use   setting), and heating of the imaging   you see on the computer screen. If
          an original battery in my camera.   sensor either due to high ambient   the camera screen image is brighter,
          I have neither used nor compared   temperature or due to very long   reduce the brightness setting for the
          the various alternatives available in   exposures. Even the degree of   LCD till both the images look same
          the market. So my statement is only   enlargement can play a role; you   or similar. This should give you a
          based on the ‘fear-factor’ of causing   may notice noise in a very large   reasonably good correction.
          some sort of harm to my camera.   image, compared to the same image
                                            printed smaller. And finally, as I   BKT/HDR
          Most ‘original’ battery grips are   mentioned earlier, your tolerance   What is the difference between
          overly priced, giving a good reason   level to noise.                Bracketing and creating a HDR
          for considering a third party battery                                image in the camera?
          grip. But for the same reason – fear   The Sony A6300 uses an APS-C size         Nitesh Vora, Vadodra, Gujarat
          factor – I would avoid it. I have also   imaging sensor which is quite large
          read on the internet that many third   compared to 1” Type sensors and   When you create an HDR image in
          party battery grips do not fit the   even Micro Four Thirds sensors.   the camera, the camera takes 2 (or
          camera perfectly. There could also be   The A6300 produces good results   3) images at varying exposures and
          an issue of the camera manufacturer   and if your pictures are going to   then blends them together in the
          declining the warranty should     be of modest size, I don’t think you   camera itself. When you bracket your   Smart Photography
          anything go wrong with the camera   should have a problem of noise   exposures, you control the number     February 2018
          that used a third party battery grip.  even at, say, ISO 1600.       of frames as well as f/stop difference

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