Category Archives: Help

Information to help people learn about photography.

Photo Excursion Settings: Manual mode with Av Shift for wireless flash.

I went on a big excursion recently where I used off-camera flash and full manual setting control. The nice thing about Pentax cameras is that you can have a few conveniences in manual that make setting changes faster and more accurate. Here is a video describing the technique I was planning on using: http://www.youtube.com/watch?v=JHAOYwDer64 For example, changing the green button functionality from “P Line” to “Av Shift” allows you to … Continue reading

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Camera Flash Communication Methods Comparison (TTL vs E-TTL i-TTL p-TTL) and Thyristor Auto Mode

I talk about camera flash communication methods (TTL vs E-TTL i-TTL p-TTL) as well as thyristor sensor based auto mode. Here is the Youtube video: Diagram for TTL and pre-flash based TTL methods: Standard TTL: This was the original method of flash power control. It happens as the film/sensor is being exposed to light. There is a dedicated sensor near the film that monitors the reflected light off of the … Continue reading

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Video about the Golden Ratio and Rule of Thirds

I’m on a roll here with learning based videos. I’m hoping to make a lot more, but of course it takes time to record, and especially edit, the videos. This video is about compositional guidelines like the Golden Ratio and Rule of Thirds (3rds). Youtube link: They can help you with your framing and overall composition of you photographs. The rule of 3rds is at its most basic your frame … Continue reading

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Camera Lens Aperture Overview

Here is another learning series article and video. This time I go over the camera lens aperture. Youtube video link: The camera lens aperture is the variable opening inside the lens that lets more or less light into the camera. A small aperture has a larger number. See a full technical description of aperture on Wikipedia: http://en.wikipedia.org/wiki/Aperture Also important is the f-number that explains what the aperture number means: http://en.wikipedia.org/wiki/F-number … Continue reading

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