Exposure Bracketing

Exposure bracketing is a simple technique professional photographers use to ensure they properly expose their pictures, especially in challenging lighting situations. When you expose for a scene, your camera’s light meter will select an aperture / shutter speed combination that it believes will give a properly exposed picture. Exposure bracketing means that you take two more pictures: one slightly under-exposed (usually by dialing in a negative exposure compensation, say -1/3EV), and the second one slightly over-exposed (usually by dialing in a positive exposure compensation, say +1/3EV), again according to your camera’s light meter.

For my tests, I chose a familiar subject, Mother Brook and added some shots of the dam at Stone Mill.

https://realrealityproductions.wordpress.com/2013/03/05/stone-mill-mother-brook-dedham-ma/

I chose an auto exposure bracketing setting of 2/3, which produces an image of normal(0)EV, +2/3(+.7)EV and -2/3(-.7) EV. All these images are jpgs and have been shot large. I also shoot raw.  I’m looking for a certain balance of grays and a deeper black from my black and white images.  lb

Note: One thing that I never really thought about, with respect to auto exposure bracketing is how the images are shot by the camera (i.e. were three separates images with three different exposure settings produced or did the camera use the same image and somehow produce different exposure settings with the data from the one image, three times?). The camera produces three separate images which are three different moments in time. The image differences are indistinguishable in a static scene but not in a scene with movement. You can see this with the snowflakes in the second series of shots.

Example #1

It was a clear, sunny day. This set of three images below is a good example of what you can expect in good light from the Xpro1 when bracketing is set as mentioned above.

2013_0320ADFuji XPro1 18mm(27mm equiv.) f/13 @ 1/420s 0EV

2013_0320AEFuji XPro1 18mm(27mm equiv.) f/10 @ 1/420s +0.7EV

2013_0320AFFuji XPro1 18mm(27mm equiv.) f/16 @ 1/420s -0.7EV

Example #2

It was a gray, snowy day for this set of three images.

2013_0307BKFuji XPro1 18mm(27mm equiv.) 0EV

2013_0307BLFuji XPro1 18mm(27mm equiv.) +.7EV

2013_0307BMFuji XPro1 18mm(27mm equiv.) -.7EV

More images to come from the mill complex and dam.

 

All rights reserved © 2018 Leo F. Brady

Three Point Lighting

Below is a short, introductory tutorial for the documentarian / filmmaker / photographer on three point lighting. Lighting a subject, is often an after thought by many inexperienced media makers but it is an essential element of any production that strives for professional look. It can also be effectively used to elicit a certain style or mood.

I’ve found the setup of studio lighting the most challenging element of media production. And there is a multitude of lighting hardware to choose from, even before you begin. That said with a bit of research, patience and practice, success will be yours.

Try practicing your setup, at home or if you have control of your filming environment, setup and adjust there, beforehand.

Another great source of ideas for lighting along with other media production topics is The Filmmaker’s Handbook: A Comprehensive Guide for the Digital Age by Steven Ascher, Edward Pincus

The Fourth Privilege – Stone Mill at Mother Brook, Dedham, MA.

The Fourth Privilege – Stone Mill and Dam at Mother Brook, Dedham, MA.

The Fourth Privilege is the fourth mill and damn built on Mother Brook. It’s fed by the Charles River. The Mill is now condominiums. You can’t see the damn from this angle but it’s on the left.

More Info: 

http://www.waymarking.com/waymarks/WMDRPB_1639_History_of_Mother_Brook_2009_Dedham_MA

https://en.wikipedia.org/wiki/Mother_Brook#Fourth_privilege_2

 

Mr. Mantis came by to say Hi…

Hey All

The other day, just after I woke up, Mr Mantis came by. I’m not sure how many times I’ve seen a Praying Mantis, up close, in my life but it’s not too many. I’m also not sure if this is really a Mr Mantis or Ms. Mantis either ;-). I’m afraid these images aren’t my best but… These Mantis’ are strangely intriguing.

From what I’ve learned; of the three Mantis’ that reside in the United States only one is native, the Carolina Mantis. The other two were introduced from Europe and China, in the last century.

Click on the images  to take a closer look.

learn more: http://itsnature.org/ground/creepy-crawlies-land/praying-mantis/

take care

leo

 

All rights reserved © 2018 Leo F. Brady

Christian A Herter Intercommunity Garden along the Charles River in Allston-Brighton, MA

Hi All

Hope you’re well!

Here are some pics of an organic community garden on the Charles River that’s been operating since 1976.

I hope you find them and it interesting.

take care

leo

 

Welcome to the Christian A Herter Intercommunity Garden!

We are an organic community garden located along the Charles River in Allston-Brighton, MA. We’ve served as a communal gardening space since 1976. Today, a diverse group of individuals and families maintain almost 70 plots where they grow flowers and fresh produce to enjoy at home.

more info:

All rights reserved © 2018 Leo F. Brady