Last update: 24th September 2025
Sep 24, 2025
Why I don't trust those repeating "bigger is better..."
Sep 8, 2025
Walking with my E-M5 II and 12-45mm Pro lens
Last updated: 16th September 2025
The E-M5 II introduced many innovative features in 2015 and continues to be a joy in 2025. Olympus engineers knew that physical size is not a reliable measure for sensor sensitivity. This led to the Live MOS digital M43 format, computational photography, tonal control, IBIS, and the 40MP high-resolution mode to overcome technical limitations, such as the noise floor found in all image sensors. We don't need expensive PCs or SSD drives to edit 16MP files or 1080p videos. For instance, a 32GB V30 SD card is sufficient when using the E-M5 II. Imagine all this plus filming for less than $450.
I converted and edited the following enhanced raw files in Workspace. This includes Color Creator and tonal adjustments, a warm color filter for some photos, and the "Low" noise filter in the camera and Workspace. The color space was RGB, and some of the images were sharpened. I prefer iEnhanced, but in some cases I used the natural picture mode to adjust colors in Workspace. My color space is sRGB when I export my processed images from Affinity Photo 2. These were 16-bit Tiff files, which I resized and exported from Workspace. The bird-in-flight shots were taken with the M.Zuiko 12-45mm f4 Pro lens, while the close-ups were done with the M.Zuiko 12-50mm f3.5-6.3 EZ lens.
While perusing the images below, ask yourself what is more important, the perfect camera or telling the story? How about learning more about the photographer as you page through these photos? For instance, what was the time of day? Were they all taken on the same day? Is this a casual, hobby, or professional photographer? What did you learn about this photographer's photography style and post-processing preferences? What is your editing and preferred photography or creative style?
Photography is fun and a wonderful way to experience and relax in nature...
PS: These images are best viewed on a 4K, 27' iMac PC.
Aug 20, 2025
High-sensitivity sensors for cameras like the OM-3
Last update: 29th August 2025
I have been observing YouTube channels focusing on the OM System OM-3. What sparked a discussion with ChatGPT were those explaining their preference for M43 cameras like the E-M1 III or the EP-7. It also seems like YouTubers feel compelled to justify positive reviews of the OM-3 or the OM-5 II. Does this indicate a trend or an accurate reflection of the M43 segment, or should we rather focus on the overwhelming positive feedback from those opting for smaller camera solutions?
My discussion with ChatGPT highlighted the technical weaknesses in the commercial layer's definition of digital camera efficiency. We reviewed the reasons why the OM-1 II or the OM-3 stacked BSI sensor is most likely a high-sensitivity sensor. It's rare to experience this amazing sensor with the OM System OM-3, as one expects this level of refinement only from pro cameras like the OM-1 II.
My discussion with ChatGPT explained the 2-stop sensitivity gain of the OM-1, the OM-1 II, and the OM-3's new BSI sensor. We also discussed a more reliable way to rate sensor sensitivity, including the unique ISO-to-SNR benefits from the two-stop M43 depth of field (in-focus) advantage. Everything changes when we learn there is more to digital cameras than the physical size of the sensor.
Did you know that the OM-1, OM-1 II, and the OM-3 have the same sensor?
A brief summary of my discussion with ChatGPT.
We started with basic knowledge and how to measure the efficiency of complex electronic parts. This know-how benefits all digital photographers, not only M43 photographers, as a good understanding of these basics will improve your ability to evaluate new product releases.
I cropped ChatGPT's replies so that they can be viewed as pictures.
The following ChatGPT reply reviews the above feedback and how it applies to image sensors. For instance, is physical size a good indicator of sensor efficiency, or do we need more?
The chances of a truly equivalent sensor size comparison are almost impossible. Equivalence means all optical and technical aspects need to be similar. Focusing only on the optical aspects of cameras will result in inaccurate comparisons. See this fun example of rating the bigger one better.
The next question reviewed camera and sensor differences. Searching for a better way of expressing sensor efficiency, the aim is to quantify these differences in exposure stops. A more practical way is to say the difference between pro-level (more sensitive) and budget sensors is 2 to 3 stops?
ChatGPT reply: Part 1:
Part 2:
Part 3:
This link discusses the commercial versus factual information layers.