Showing posts with label Lens review. Show all posts
Showing posts with label Lens review. Show all posts

Monday, September 15, 2014

Initial Impression Review - Sony FE 70-200mm f/4 G OSS lens

Update: To see more photos taken with this lens, see the following blog post(s): DAY & NIGHT

Not too long ago, I dove into the deep end and purchased my first mirrorless full frame camera, the Sony Alpha A7. Spoiler Alert! I am extremely happy with the camera and I am happy I waited as long as I did to upgrade for the price alone. I have owned a handful of telephoto zooms in the 70-200 range and noticed (and documented in prior posts) that adapted lenses with AF tend to have unpredictable performance. While I loved adapting the Olympus 50-200mm four thirds lens to my E-M1, I noticed it would hunt in low-light conditions or sometimes back/front focus (a common but easily fixable problem with phase detect AF systems). I decided that moving forward, I would invest only in native AF glass for both my Sony and M43 cameras with exception to vintage and manual focus only lenses. So with the purchase of the A7, I also bought the Sony FE 70-200mm f/4 G OSS lens. This is similar to purchasing a 35-100mm f/2 lens for a M43 camera in field of view and depth of field (not light gathering) respectively. 

My first in studio shot using this lens and I am extremely happy with the focus accuracy and image quality
Although I like to do a more extensive review after using any photographic equipment for longer than 6 months, I think this lens warrants at least a small write up. I've been asked by a handful of people what I think about this zoom and whether or not I would recommend it. It is always hard to answer this question without getting to know what kind of photographer you are, so hopefully this semi-short initial impressions review will help you decide whether or not you want to spend $1,500 on this lens. Short answer is it fits perfectly in my collection and is here to stay. 

Monday, August 18, 2014

A weekend with the Sony A7 and the Olympus OM 50mm f1/.4 - Breathing new life to an old lens

Features
  • All metal construction weighing in at 230g (per my research)
  • 49mm filter thread
  • Close focuses down to 0.45m or 1.47 feet. 
  • 180 degree focus ring throw
  • Manual aperture adjustments in full stop increments from f/1.4 to f/16
  • Optical construction of 7 elements in 6 groups
  • Cat eye bokeh wide open with hexagonal shapes closed down
Pros
  • Sharp at the center even wide open
  • Inexpensive to adapt to most mirrorless cameras
  • Light weight, all metal construction that maintains heft and appearance of quality
  • Covers a full frame sensor
  • Focus ring has just the right amount of throw from near focus to infinity
  • You can get fairly up close and personal with your subjects
Cons
  • Noticeable vignetting at f/1.4
  • Soft along the edges. Improves at around f/2.8
  • Manual focus only (I don't know if I can qualify that as a con, but I understand it may be to some)
  • Back lighting or direct sunlight into lens occasionally yield soft, washed out images. 
A very quick snap of the Olympus 50mm  f/1.4 on a battle tested Olympus OM 40 film camera. For a fast 50, it is quite a small lens.