Macro Photography – Classic Prime SLR lenses vs Cell Phone with a Loupe

January 28, 2018

The capabilities of cell phone cameras are amazing, performing better than my classic SLR lenses. Here is how I used a simple analog loupe with my cell phone to do some great macro photography.

 

Recently I went to change the keyboard of one of my Acer laptops. As I disassembled it, the tiny mainboard connector part came off . It clamps the keyboard ribbon to the laptop’s mainboard.

It just wasn’t going back on. Part of the issue was that I was not sure which way it went back together. This side down, or the other side?

So I got out my photographer’s 35mm loupe to take a look. I could see a lot of very tiny teeth that had to be matched up. Read the rest of this entry »

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Trying and Cracking Steganography

January 4, 2018

Once I read about how some spies were saving messages in pictures. Cool. So I thought I’d try it just for fun.

Steganography

It was a lot different from invisible ink we played with as kids. 🙂

First I looked at an article on StackOverflow

Read the rest of this entry »


Successful Audio and Video Screen Capture on Windows 7

August 9, 2017

Occasionally, I see some great videos online, and I download them to my hard drive for my personal use. One reason, some videos can take a long time to watch.  So I download them and watch them at another time, like using a DVR.

Recently, there was another webinar. I thought it would be easy enough to download. But like so many other times, I had to spend a LOT of time installing and fixing the software first.  Here’s how I made it all work.  Read the rest of this entry »


Clearing The BIOS Passwords On My Acer Laptop

December 5, 2015

Recently, I bought an older Acer Travelmate 8473T laptop on Ebay. Why not, it was only about $100. But it turned out to be not such a good deal.

One thing that really bothered me was that I could not access the BIOS.

DSC_2384_2

Acer BIOS Password Request

Usually, I’ll upgrade and reconfigure my machines. So, accessing the BIOS is really important.

This began another long project. Over a few weeks, I’ve spend probably 20 hours or more. Don’t you just love it when bad people and/or technology problems become the black hole of your time?

Quick Solution:

For those of you who just want the solution that worked for me,  Read the rest of this entry »


Unbeatable Tic Tac Toe – Rule Based Algorithms

May 19, 2015

Continuing my work with Java, recently, I developed an unbeatable Tic Tac Toe game in Java.

Tic Tac Toe Tie Game

Tic Tac Toe Tie Game

While you can find many such programs online, I think that I’m the only person to create the kinds of algorithms I have.

Coming from a database background, I implemented a number of database like structures in memory. An array list of remaining cells. A Decision Table. And a lookup table for intersections of runs.

Here’s how I did it.

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Many Event Handlers:

Read the rest of this entry »


Java error: non-static method cannot be referenced from a static context

April 16, 2015

Recently, while writing a java program, I got the classic Java error:
non-static method cannot be referenced from a static context.

No doubt, other young java practitioners have had this error.

Here, I’ve laid out a simple program, with explanations, so that you can avoid the problem. Voila: Read the rest of this entry »


Review – Nikon CoolScan 5000 ED

December 7, 2014

For over a decade, while I went to university, and for a few years after, I owned and operated a photography business. At that time, cameras were film cameras, not digital. After a few years, I had a big collection of negatives.

In 2007, I bought a film scanner to scan some family pictures, the Nikon CoolScan 5000. It’s been fabulous to use.

Nikon Coolscan 5000 ED

Nikon Coolscan 5000 ED

Recently, I’ve been using it again to scan some more 35mm negatives and transparencies. The software is so intuitive, the results so good, and it’s such a pleasure to use, that I’m inspired to write about it.

 

Traditional Darkroom Techniques:

For those of you who have never worked in the darkroom, it’s a very laborious process. Read the rest of this entry »


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