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Showing posts from October, 2017

SD Card Speed Test Roundup October 2017

I’ve done previous articles. A decent amount of the cards here will be the same. The goal was to round up as many cards as I had on-hand to do benchmark testing on. I also did a bracketed camera test with the Nikon D600. Here is the companion video on Youtube . I used a Transcend USB 3.0 card reader for this test. Here are the steps I took to setup the benchmark: Make a bootable USB drive with Ubuntu Desktop on it. In my case I used version 17.04. Download an ISO . Download the USB bootable drive tool . Run Rufus and have it create the bootable drive with the downloaded ISO image . At that point you can reboot your computer with the USB drive attached and get into Ubuntu. Once loaded, you have to find the Disk Utility. It wasn’t quite as easy for me as in past articles. Partly because I haven’t used Ubuntu for a long time and they also hid the utility for whatever reason. I was able to search the available programs and bring it up. They also hide the benchmark functionality inside a “b...

Yongnuo 100mm f2 Lens Details

I recently made a video about firmware v1.03. There are improvements in auto-focus performance, especially in live-view mode. Here is a link to full sized example photos on Flickr: Flickr Gallery Link Here is a crop of one 100MM@f2 photo at 100% without additional editing: I’d personally consider that is producing a nice amount of detail, especially without any editing. There are a large number of factors involved from the distance to the subject to others like hand/shutter shake. The Youtube review: https://www.youtube.com/watch?v=k_vb97yTjN0 Notes I wrote up while making the review: From the manual it lists the lens as having 9 aperture blades and a minimum aperture of f19, which is confusing because both of my cameras go to f22. Minimum focus distance is 0.9 meters or around 3 foot with a 0.14 times magnification. This isn’t a lens you will be getting close focus and high magnification with! The lens comes with caps but no lens hood. It does have a 58mm filter thread, which is a sta...