Hi, I'm Ruth Meijper and welcome to Adorama TV. Today I'm going to be looking at the 135mm F2 lens from Rokunan. I'll be using the lens on a Canon 5D Mark III. This is a full frame lens so you'll achieve a genuine 135mm with a full frame camera like I have here. 135mm is perfect for studio use and particularly headshot as it has a great angle of view. It has a minimum focusing distance of 2.6 feet. So if you're a regular studio user you should be well used to keeping this sort of distance for a flattering angle on your model. One thing to mention about this lens is that it is manual focus. Now this may scare away some auto-only users but it really shouldn't. If you've never used a manual focus lens before you should definitely give them a chance. I like using manual focus in the studio as it makes me slow down and consider each element of the shot more. I mostly use tripod and seat the model so there's really not a lot of variables and when focused properly you'll get some super sharp results with this lens. You'll get great results throughout the entire range from F2 right up to F22. The ultra multi coating on the glass ensures that ghosting and flare are minimized and there are practically zero signs of chromatic aberration. When shooting outdoors most portrait photographers including myself might like to use an ND filter. The 77mm filter thread on this lens means you have plenty of options to choose from. The lens creates some stunning bokeh when shot at F2 so for nighttime portraits or daylight with an ND your backdrop will be gorgeous and soft. Also you can use the lens hood to minimise stray sun rays and flares or maybe you like a lot of lens flare. I know I'm partial to using it for effects sometimes which might make some of you cringe right now so I love when you can detach a lens hood and let that light in. I think this is a must for portrait photographers who move between studio and location. The first aperture allows you to capture a lot of light when you're relying on available lighting which is perfect for doing bridal portraits next to windows and when you really want to soak up all that gorgeous daylight. This lens is going to make a great addition to my kit bag for sure. Thanks so much for joining me today. Tune in next time for more great information about photography related items and new products. Don't forget to subscribe to our YouTube channel for more product reviews. I remember to visit the Adorama Learning Centre for tutorials and tips. Thanks for you again. Do you want great looking prints at low cost? Be sure to visit our easy to use online printing service. Adorama Pix has professionals who treat your images with the utmost care that you can count on. For quick turnaround on photos, cards or albums use AdoramaPix.com.