RDM5546

Lives in United States LOS ALTOS HILLS, CA, United States
Works as a Research Engineer
Joined on Oct 17, 2019

RDM5546's recent activity

  • For EOS R in the 1.6 crop mode it has the same field of view as the same focal length lens on an APS-C. I have a superzoom Tamron 18-400mm f/3.5-6.3 EF mount lens which is for an APS-C sensor ...
  • (1) Some buyers value more pixels because it is a bigger number. (2) Some buyers of photographers services may value more pixels. Today part ...
  • You may be right. I know they require you to enter the dealer when you register your gear at their website. I bought some at a Japanese dealer while visiting in Japan. They offered me an extended ...
  • Are you saying Canon will sell you and extended warranty, which typically involves providing them through a registration process the serial number of the lens or camera, and then not honor it ...
  • I have the EOS R and I own several Canon EF-S lens that orignally I bough to use with my 7Dii. Some were bought in like new condition at a very bargain prices used because the resale of crop ...
  • Put the file on the freshly formatted disk but do NOT put file in a folder. Just the file alone on the fresh disk. Be sure to use a fully charged battery in the camera before starting the the ...
  • I did not realise there was a big difference in the Canon 1.4X extenders. I have the original first model. I also have the `1.4X III extender. I have used them mainly with my EOS 5D mk IV and the ...
  • Think Tank Photo Digital Holster 10 V2.0 is a toploader that fits snugly on the sides with the EOS R + RF 24-240mm lens attached.. The bottom unzips allowing extention of a couple inches  longer ...
  • I also started in film with Nikon FTN, then Canon and then the first digital with the 10D, 20D, 40D 70D,e 7DII and first FF was 5DmkIV.   I did mind slower fps in the early days but once you get ...
  • I have a 7DII with an EF 70-200mmf2.8L IS III USM which I use for field sports like soccer and football. With the crop factor it is 132mm-320mm f2.8 which is very nice and focus is speedy but it ...
  • I know what you mean. Size and weight are important in a travel lens. My EF 35-350mm L lens was sharp in the middle and also if stopped down but it was short of being a great lens for travel. Size ...
  • Thank your comments on the Tamron 28-300mm 10X zoom vs the Rf 24-240mm.  I gave the Tamron a look because it was $600 but I felt it was much and would require an adapter.  10X zooms all have ...
  • I began with one adapter with th e control ring. I do use the control ring much yet. I may in the future. In using the a dapter I saw value in buy a couple of more adapters to simply things. I got ...
  • I have owned a bunch of 10X zooms over the years. I love them for walking around and travel including the RF 24-240mm, all the way back to the unstabilized EF 35-350mm f 4-5.6L in 1994. Not only ...
  • The major point I was attempting to make was that it appears Canon has included stacked CMOS sensor in two new Point and Shoot cameras.  Sony makes sensors using stack CMOS which can readout the ...
  • I meant to say the long dimension of the chip is approxmately one inch in it's long dimension. https://en.wikipedia.org โ€บ wiki โ€บ APS-C This link describes this sensor as being 25.1×16.7 mm in ...
  • You make very good points. I too consider it to be a deal killer to use an different battery. I use external battery charger that comes with the camera and I want to minimize the number of those ...
  • I read your story with interest because I have similar photographic requirements for taking still pictures of objects. One thing you have share is how big the objects are are small like jewels or ...
  • Not a guess Omnivision is now making CMOS stacked CMOS Images at TSMC https://www.ovt.com/sensors/OV48B Output formats include: (1) 48MP at 15 frames per second (fps) with remosaic
  • https://www.amazon.com/ZLMC-Compatible-Anti-scrach-Anti-Bubble-Anti-Fingerprint/dp/B07MN3DYYD
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