Question of the week -If you were going to make a coffee table photo book - what would be the subject?Week/month in review:Family Vacation (shooting experience with the GH4 and qualty of the high ISO filesISO 2500 examples https://www.dropbox.com/s/852e2tgii623064/Screenshot%202015-01-13%2008.28.42.png?dl=0https://www.dropbox.com/s/ketgoe9tjac85ar/Screenshot%202015-01-13%2008.31.54.png?dl=02x Extender Review: https://www.youtube.com/watch?v=uIIp1F9bkTYDepth Of field Master Link: http://www.dofmaster.com/dofjs.htmlB&H Tour - Microphone room, Speaker Room and Zoom LensNew Style of the Photo Critique:Week Ahead -Montana - http://mckaylive.com/bozeman-animals-wyellowstone-15-spots-left-january-16-21-2015/Annoucements!http://www.patreon.com/photorectobyWorkshopsSignup for newsletterNews:CES - Photo round up http://gadgets.ndtv.com/cameras/features/ces-2015-cameras-roundup-646806Nikon D5500 (feb 5th) http://digital.photorecommendations.com/recs/2015/01/nikon-d5500-announced-successor-to-the-d5300/Canon P&S (Connect Station) - Glimpse of a new rebel?http://www.canonrumors.com/2015/01/a-new-xxd-dslr-coming-from-canon-cr1/New 18-300 IS STM Ef-S coming. . maybeCP+ Feb 12-15th - Maybe 5D Mark IV, T6i, D7200http://www.cpplus.jp/en/aim/Christina’s favorite camera - the HTC RE http://www.androidauthority.com/htcs-re-live-stream-youtube-579249/http://petapixel.com/assets/uploads/2015/01/rankings.jpghttps://www.flickr.com/camerashttp://spaceref.com/nasa-hack-space/large-synoptic-survey-telescope-camera-receives-funding-approval.htmlDiscussion:Roger Hunt / Tony LawrenceCalculating depth of field . . . should you base it on the focal length of the lens or the lens + crop factor . . . also suggested by someone else on Post to Your Page was how to use the depth of field button on the cameraReader Questions:Scott RobelotCan you please explain the best way to clean the mirror inside of a dslr?relayer705I have a Q. Will a 24 mp sensor be better in low light than a 16 mp? I have a Nikon D5100. I know that a full frame is much better in low light but would more mp make any difference in smaller sensor?Gerald MeredithAny experience with 5D Mark 3 underexposing in "manual mode" even if viewfinder meter shows correct exposure? All other modes seem okMiguel Rocha5D mk2 or 6D?