Category Archives: Review

Sony 20mm F2.8 – UV test

I bought the Sony 20mm F2.8 E-mount pancake lens mainly to test it for its capability in shooting UV and Insect-D-sight, as it is small, light, fairly wide-angle and a native E-mount lens with autofocus. I previously owned the Sony 16mm F2.8 lens, but sold it even though it transmits UV reasonably well as I did not like the image quality. I was hoping this lens could perform similarly well in UV transmission but with better IQ. For this test, I used my friend’s NEX-5N.  Continue reading Sony 20mm F2.8 – UV test

Sony NEX-5N – UV imaging

I remember few years ago when i first owned the Sony NEX-3 and used it for UV-imaging. Unfortunately the custom white balance range was not sufficient to properly white balance in UV for the jpeg files. This issue was fortunately resolved by the NEX-5N (4th camera in the NEX range) which had a wider white balancing range. I had sold my NEX-5N a while ago, and hence could not test this again until I borrowed my friend’s copy. Continue reading Sony NEX-5N – UV imaging

Thunderbolt SSD Drive

Since starting my website, I have realised that the Western Digital My Passport 2TB USB 3.0 drive is not really keeping up the large RAW files that I have in my Capture One Pro catalog. Even browsing the thumbnails can take quite a bit of time as there is significant lag while these load up. Hence I decided to invest in faster storage, to improve computer efficiency. Continue reading Thunderbolt SSD Drive

Useful accessories: 2) Extra support

There are some accessories available online which can be very helpful for a photographer. Some are good for holding pieces of equipment in place, while others will hold the subject being photographed in position – but they do help the photographer to get that special shot. I have found these items below to be helpful for shooting flowers, but some of these could easily be adapted for other types of photography. Continue reading Useful accessories: 2) Extra support

Review: Sony A7R and Coastal Optics 60mm F4 APO Macro

The Coastal Optics 60mm F4 Apo Macro lens is a truly amazing optical engineering feat. It is apochromatic from ultraviolet, visible light, through to infrared. This means that the light from all three spectral range will be focused at the same point, so the image remains nice and sharply focused; bear in mind it is supposed to let through a significant amount of the UV, unlike other apochromatic lenses.

Sony A7R + Coastal Optics 60mm F4
Sony A7R + Coastal Optics 60mm F4

It is the only such lens I know of which is still in production with such an apochromatic capability – even the UV Nikkor 105mm F4.5 has no focus shift for UV and visible light (but not infrared). The Coastal Optics is also said to be very sharp from wide open. But it does have its weakness (the hotspot issue), although that can be overcome through various ways – I will talk about this later Continue reading Review: Sony A7R and Coastal Optics 60mm F4 APO Macro