John Grogan: Blog en-us (C) Copyright 2018 John H Grogan (John Grogan) Fri, 23 Jun 2017 04:44:00 GMT Fri, 23 Jun 2017 04:44:00 GMT John Grogan: Blog 120 80 The Thin Line Between Amateur and Pro I am regularly asked, 'Should I get cards printed?' What a difficult question. Just that they asked tells me they are thinking about hanging their shingle to represent themselves as a professional. My usual answer is why do you think you need business cards. This is where you need to stop and seriously, is this what I want? Why do you think you're good enough? Is it because mom & dad tell you how good you are? What makes them an expert? 

Unless you have blunt parents, all parents think their child is good at whatever they do. Same for Aunts and Uncles, don't put a lot of stock in them either. Usually your peers will be the best judge. Before stepping over the line, step softly and cautiously. Know you niche, keep your products small and as your abilities grow, grow your products, DO NOT take on jobs you do not know what you are doing. Praises expand outward slowly, screw ups get around at super sonic speed and sometimes takes years to live down.


]]> (John Grogan) Fri, 23 Jun 2017 04:43:54 GMT
Get Your Work Out There ... You can reasonably go for years thinking your the best photographer on earth, staying isolated from any opinion. The real test of your work is to put yourself out there, getting feedback from your peers. So as you develop your style, and you should never stop honing your craft, always compare your work to others 'doing your style' and see what is working for them. Enter contest, photo calls for work, to get the opinion of the judges. I have been shooting for nearly 40+ years and I still seek the opinion of others that I feel are better than me. No one will ever know you and your work until you get out there.


]]> (John Grogan) Fri, 23 Jun 2017 04:29:48 GMT
A Practical Look at Polarizing Filters I get a lot of questions regarding, what type of polarizer to use? Meaning should I get a circular polarizer or a linear polarizer?

On the surface one would say a circular polarizer is used on all modern DSLR or SLR cameras if you are still using film. For the sake of this subject I need to assume two things, this is not a technical conversation and I assume we all know how a polarizer works and why use them.

The need for circular vs linear polarizers seems to stem from the way auto focus and the auto metering functions of the camera body share light coming thru the lens and in this case the filter. The idea is because of the reduced amount of light can cause the camera to misjudge the light and cause the metering system to give you the wrong exposure and or focus.

Another issue is multi coating used on lenses and filters. It is difficult to find quality filters that use multicoating. In most cases, they are expensive and hard to find. A circular polarizer is simply a linear polarizer with an extra layer or coating affecting the way light is transmitted to the sensors in your camera.

Now those are the issues, but in application what is the net result. Let’s look at price. I compared a Hoya 77mm circular to a Hoya 77mm linear polarizer. Using B&H Photo for pricing, I found the linear to be $46.99 and the circular polarizer was $93.90 with variations of circular polarizers up to $199.00. But that’s a look at price and we all know price is not a final factor.

In practical uses in both a hand-held meter and the built-in meter, the polarizer is at or below 1/3 stop difference in the error factor. On some cameras, a third stop is not enough variance to affect the image. In most prosumer and pro cameras, you could see a difference, but in those situations the photographer brackets taking in account of the filter characteristics. In my personal practice, most all assignments and personal projects are shot on manual exposure so this issue is not a problem. Most of the reviews and comments I found in researching this subject is that people for the most part cannot tell the difference.

Conclusion. If you are starting out in photography go ahead and get the circular, the idea always is to get the best product you can afford. If you’re like me, and already have the linear filter continue to use it but understand the differences. In fact, I have both and I really use them without noticing the difference. But above all, knowledge is the key.

Why and how to use to polarizer? Sounds like a subject for later on …

]]> (John Grogan) circular filter linear polarizer Fri, 05 May 2017 14:43:07 GMT