khaledgawdat

Lives in Egypt Cairo, Egypt
Works as a professor of surgery
Joined on Oct 9, 2011
About me:

khaledgawdat@hotmail.com

khaledgawdat's recent activity

  • Nice comparison, I have both lenses and my subjective opinion is that the 105 1.4 is way sharper give better Colorado and contrast. The sharpness was not addressed in your comparison. I regret ...
  • Created discussion thread D500 dynamic range: Magic
    I was at a trip to Aswan Philae temple in Egypt, Had my D 500 with the 10-20 mm sigma lens with the camera setting to ISO 100, 1/1000 sec and 3.5 f stop. I forget to change these settings indoors ...
  • Replied in Keep doing it
    Your money, your space, your hobby. Enjoy. You don't need others approval. My advice find time and use them.
  • I am very happy with mine it is a great lens. I recommend you go to a shop that has another one, try both and compare. Yours may be a faulty one. The problem here is that not to many shops have ...
  • I originally bought it for street photography in crowded or photography hostile area. 24 mm equiv zeiss, 1 inch sensor small form factor. even at that it might not work as I have not liked any of ...
  • Replied in I have both
    I have the Pentax 645 z with many lenses and I have the Nikon d850 and many lenses. I use the Pentax system may be once a year. I use the Nikon all the time. Some trips I take the m43 olympus. If ...
  • Created discussion thread RX0 overheating
    I wanted to video record my Son's masters defence. I thought that the RX0 is quite small and will not be offending to the faculty of I use it. The camera was perfect for that purpose and I was ...
  • Created discussion thread RX0 overheating
    I wanted to video record my Son's masters defence. I thought that the RX0 is quite small and will not be offending to the faculty of I use it. The camera was perfect for that purpose and I was ...
  • Same sensor as mk 2 probably same image quality, for me no need for change unless better image quality is proven
  • D850 with the high megapixel count some lenses may perform sub optimally and Nikon published a list of their recommended lens list to be used with the D850. I have the 70-200 2.8 VR II and to my ...
  • I just bought the lens few days ago, the af/mf button on the lens is easy to move especially if you are changing cameras and putting the camera in and out of the bag.  I had times where it didn't ...
  • I used the reversing ring in the 80s and I remember the drawback of extremely shallow depth of focus. What f stop are you using here?

  • Replied in About tripods
    I think on a  short bridge with buses and cars moving you can never achieve complete stillness with a tripod alone as the tripod and camera will move. may be then combining the tripod with IS ...
  • I sit the camera on the rail of the London bridge support with 2 hands and pushed the shutter release
  • I shot pictures of tower bridge in London 36 years ago, I remember going there by night with a heavy camera bag and sturdy tripod to get the shot with self timer and remote release.  Few days ago ...
  • Replied in Deal on a 645Z
    I had the 645 D then Z with all lenses in the Pentax line. It is am amazing medium format camera with many great inexpensive autofocus lenses in the used market and that gives it a big edge in ...
  • https://www.dpreview.com/forums/post/58570824
  • The vignetting is because the sensor size is larger with a crop of 1.3 on the sdq-H and the lens is designed for the 1.5 crop sensor. I don't think the hood is the reason.
  • Created discussion thread SDQ-H 85 1.4 Art, 17-50 2.8
    my first trial of the SDQ-H. Day light ISO 100. The 17-50 2.8 gives heavy vignetting at the wide end, the 85 1.4 is incredible my son's portrait is great, all pictures are unedited OOC JPG. I need ...
  • Replied in All subjective
    I have a similar experience with opposite conclusions, I hate all 1.4 Nikon's and I would rank them as the most disappointing purchases I made for Nikon with the exception of the 105 1.4. I don't ...
Activity older than 12 months is not displayed.
Total messages 354
Threads started 37
Last post 4 weeks ago
Total comments 5
Total likes 10
Last post 5 months ago
Total reviews 1
Last review Aug 20, 2013
Entries 4
Votes cast 0
Last entry Sep 7, 2013
Photos uploaded 48
Last upload Mar 2, 2015