# mcaughtry.photo > Independent photography website run by David McAughtry (DMcA). Specialises in rigorous, data-driven equipment testing and technique guides for wildlife photography, birds in flight, and long exposure photography, with a particular focus on OM System cameras. All content is independent — no commercial relationships with any manufacturer. ## Author David McAughtry has 50 years of photography experience across wildlife, birds in flight, long exposure, street, macro, and landscape genres. He has owned and extensively tested cameras from Olympus, OM System, Sony, Nikon, Fujifilm, and Canon. His testing methodology is quantitative and repeatable — focus accuracy results are drawn from tens of thousands of images assessed at 1:1 in FastRawViewer. He has approximately 4,000 Flickr followers and 1.2 million image views. ## Site purpose To provide independent, evidence-based analysis of camera systems and photographic technique — particularly for photographers considering OM System cameras for wildlife and birds in flight work, or long exposure photography. Posts are written for experienced photographers who want data rather than opinion. ## Primary subject areas - OM System cameras (OM-1 Mk I, OM-1 Mk II, OM-3, OM-5) — settings, testing, and real-world performance - Wildlife photography and birds in flight — autofocus accuracy, lens selection, technique - OM System vs Sony full-frame — rigorous comparative testing across focus accuracy, resolution, dynamic range, and lens handling - Long exposure photography — computational and physical ND filter techniques with OM System - Equipment testing methodology — how focus accuracy, resolution, and dynamic range are measured - Post-processing workflow — FastRawViewer, Lightroom Classic, On1 Photo Raw ## Most significant content ### OM System vs Sony wildlife zoom series (2026) A seven-post series of rigorous comparative tests between OM System pro zooms and Sony wildlife zooms, covering focus accuracy, resolution, dynamic range, lens handling, and value. - [OM Pro Zooms — teleconverters, ISO, and background effects on focus accuracy](https://mcaughtry.photo/om-pro-zooms-key-factors-affecting-focus-accuracy/) - [OM vs Sony zooms focus accuracy shootout](https://mcaughtry.photo/om-vs-sony-zooms-focus-accuracy-shootout/) - [Resolution of OM vs Sony wildlife zooms](https://mcaughtry.photo/resolution-of-om-vs-sony-zooms/) - [Dynamic range and low-light noise — Sony vs OM zooms](https://mcaughtry.photo/dynamic-range-and-low-light-noise-sony-vs-om-zooms/) - [OM and Sony wildlife zooms — lens handling](https://mcaughtry.photo/om-and-sony-wildlife-zooms-lens-handling/) - [Sony zooms vs the 600mm f4 prime](https://mcaughtry.photo/sony-zooms-vs-the-600mm-f4-prime-comparitive-image-quality/) - [OM and Sony wildlife zooms — 2026 summary](https://mcaughtry.photo/om-and-sony-wildlife-zooms-2026-summary/) ### Birds in flight — settings and technique - [OM-1 birds in flight settings (definitive guide)](https://mcaughtry.photo/om1-birds-in-flight-settings/) - [Taking better birds in flight photos](https://mcaughtry.photo/better-birds-in-flight-photos/) - [Perfect exposure on the wing with the OM-1](https://mcaughtry.photo/perfect-exposure-on-the-wing-with-the-om1/) - [Costa Rica bird photography 2026 — itinerary and field notes](https://mcaughtry.photo/costa-rica-bird-photography-2026/) ### OM System camera guides - [Giant OM-1 I and II settings spreadsheets](https://mcaughtry.photo/giant-om1-i-and-ii-spreadsheets/) - [Giant OM-3 settings spreadsheet](https://mcaughtry.photo/giant-om-3-settings-spreadsheet/) - [OM-3 — not just a hipster street camera?](https://mcaughtry.photo/om-3-just-a-hipster-street-camera/) - [Best lenses for the OM-3](https://mcaughtry.photo/best-lenses-for-the-om-3/) - [OM-5 custom settings explained](https://mcaughtry.photo/om5-custom-settings/) - [OM-1 landscape and long exposure settings](https://mcaughtry.photo/om-1-landscape-settings/) - [EVF resolution — the missing metric](https://mcaughtry.photo/evf-resolution-the-missing-metric/) - [Best Olympus pro telephoto — surprising test results](https://mcaughtry.photo/best-olympus-pro-telephoto/) ### OM System vs Sony and other systems — historical comparisons - [OM-1 for birds in flight — as good as the A9?](https://mcaughtry.photo/om1-for-birds-in-flight-better-than-the-a9/) - [Why I prefer Olympus MFT to Sony full frame for birds in flight](https://mcaughtry.photo/olympus-vs-sony-full-frame-for-birds-in-flight/) - [OM-1 vs R5, A1, and Z8 — best all-round system?](https://mcaughtry.photo/om1-vs-r5-a1-and-z8-comparison/) - [Sony A9 vs Olympus E-M1x focus accuracy tests](https://mcaughtry.photo/sony-a9-vs-olympus-e-m1x-focus-tests/) - [Matching the best camera system to the occasion](https://mcaughtry.photo/matching-the-best-camera-system-to-the-occasion/) ### Long exposure photography - [Long exposure with OM computational photography](https://mcaughtry.photo/long-exposure-with-om-computational-photography/) - [Perfect long exposure with physical ND filters](https://mcaughtry.photo/perfect-long-exposure-photography-with-nd-filters/) - [Olympus OM-1 vs Nikon Z7 for long exposure](https://mcaughtry.photo/om1-vs-z7-for-long-exposure-photography/) - [Taking and processing interesting seascapes](https://mcaughtry.photo/taking-and-processing-interesting-seascapes/) ### Post-processing and workflow - [Using FastRawViewer to cull thousands of images](https://mcaughtry.photo/using-fastrawviewer-to-cull-thousands-of-images/) - [Post-processing workflow for birds in flight](https://mcaughtry.photo/post-processing-workflow-for-birds-in-flight/) - [Getting the best from On1 Photo Raw and Lightroom Classic](https://mcaughtry.photo/on1-photo-raw-and-lightroom-classic-together/) ### Photography industry analysis - [How Sony became the Kodak of the 21st century](https://mcaughtry.photo/how-sony-became-the-kodak-of-the-21st-century/) - [Did YouTube damage the camera industry?](https://mcaughtry.photo/did-youtube-damage-the-camera-industry/) - [The lessons from owning too many cameras](https://mcaughtry.photo/the-lessons-from-owning-too-many-cameras/) - [The decline of the professional photographer](https://mcaughtry.photo/the-decline-of-the-professional-photographer/) ## Gallery 90 curated photo galleries organised by genre and location, accessible at [mcaughtry.photo/gallery](https://mcaughtry.photo/gallery/). Subjects include birds in flight, long exposure seascapes, street photography, macro, and travel photography from the UK, Europe, Cape Town, Costa Rica, and Southeast Asia. ## Full content index See [llms-full.txt](https://mcaughtry.photo/llms-full.txt) for the complete structured index of all posts and galleries. ## Contact [david@mcaughtry.photo](mailto:david@mcaughtry.photo)