Equipment Reviews and Tests
Olympus M.Zuiko ED 25mm f/1.2 PRO Lens Review
MTF50 and Bokeh for 25mm Micro Four Thirds Lenses
Panasonic Lumix G X Vario PZ 14-42mm f/3.5-5.6 Lens
Olympus 75mm f/1.8 Lens
Panasonic Lumix G X Vario 35-100mm f/2.8 Lens
Panasonic Lumix G Vario 12-60mm f/3.5-5.6 Lens
Panasonic Lumix G Leica Noctictron 42.5mm f/1.2 Lens
Olympus M.Zuiko ED 12-40mm f/2.8 PRO Lens
Canon EF 16-35mm f/2.8L II USM Lens Compared to EF 16-35mm f/2.8L USM
Canon
EF-S 17-55mm f/2.8 IS USM and Canon EF-S 17-85mm f/4-5.6 IS USM Lenses
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- Compared to Tamron 17-50mm f/2.8 XR LD, Sigma 18-50mm f/2.8 EX DC Macro
and Canon EF-S 18-55mm f/3.5-5.6
Canon EF 17-40mm f/4L USM Lens
Canon EF 24-70mm f/2.8L and Canon EF 28-70mm f/2.8L Lenses
Canon EF 24-105mm f/4L IS Compared to EF 24-70mm f/2.8L and EF 28-135mm f/3.5-5.6 IS Lenses
Canon EF 24mm f/1.4 L USM Lens
Canon EF 35mm f/1.4 L USM Lens
Canon EF 50mm f/1.0L USM Lens, EF 50mm f/1.4 USM Lens, EF 50mm f/1.8 II Lens
Canon EF 28-135mm f/3.5-5.6 IS Lens Compared to Other Zoom and Primes Lenses
Canon EF 85mm f/1.2 L II (Mark II) Compared to Mark I Lens and to Canon EF 85mm f/1.8 lens
Canon EF 85mm f/1.8 lens/ Canon EF 100mm f/2 USM lens and Canon EF 135mm f/2 L USM lens
Canon EF 70-200mm f/2.8 L IS USM lens
Canon EF 70-300mm f/4.5-5.6 DO USM lens
Canon EF 300mm f/4L IS USM lens
Canon EF 400mm f/5.6L USM lens
Canon APS-C Camera (Canon 400D Digital Rebel XTi) Portrait Lens Test Images
Bokeh and Background Blurring with Canon Lenses
Nikon
D80 Portait Lens Test Images
Takahashi Epsilon-130D (E-130D)
Planetary Observing with 5mm Eyepieces: Pentax 5mm XO; Baader 5mm Orthoscopic; University Optics 5mm Abbe Orthoscopic and 4.8mm Super Abbe Orthoscopic
Astrophotography: Evaluation and Review of the Takahashi EM-11 and TSA-102 as a Light Weight, Airline-Transportable System for Visual Astronomy and Astrophotography
Astrophotography: Building an Eyepiece Holder for Canon EF Lenses Using a Rear Lens Cap
Optical Encoder and Argo
Navis Computer Installation on 18" Starmaster Dobsonian Reflector
Telescope
Temperature Insensitivity of Varget, IMR 4166, IMR 4064 and N140 for .308 Win F-TR
Temperature Sensitivity of 8 Powders for .223 High Power Service Rifle