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What's Updated
I think a lightweight long-zoom fast shooter (e.g. Canon R5 + RF 800mm F11 which at 2.0kg can reach 1200mm EFL when cropped to 20MP) can find 3 applications:
All focal lengths below are adjusted as if cropped to 20MP.
600mm+
- The max aperture numbers for "Fujifilm X-T30 + Fujifilm XF 70-300mm + Fujinon XF2X TC" are now corrected.
- A new solution, "Fujifilm X-T30 + Fujifilm XF 100-400mm + Fujinon XF2X TC", is added.
- "BIF solutions" in the title is changed to "fast shooters" to better indicate my applications. A new section "Applications" is added.
I think a lightweight long-zoom fast shooter (e.g. Canon R5 + RF 800mm F11 which at 2.0kg can reach 1200mm EFL when cropped to 20MP) can find 3 applications:
- BIF, but not small bird in flight: Small birds like the kingfisher fly fast and generally I won't try to follow them in flight even with a long-zoom fast shooter. Most people's reflexes simply can't catch up with them.
- In-place fast action: Imagine a kingfisher is eating a fish while perching on a branch. The eating process takes merely seconds if it's a small fish, and every second in this process the beak and fish are constantly moving. So aiming and AF won't be a problem (as the bird perches in the same place) but a high shutter speed is essential. This is when the solutions greater than 1000mm on the list below can come into play.
- Handheld shooting of "in-place fast action" or a stationary target: Imagine a kingfisher is eating a fish while perching on a branch, or is simply perching still on a branch, and you want to take a handheld snapshot. Likewise, aiming and AF won't be a problem as the bird stays in the same place, but a high shutter speed is required to reduce/eliminate camera shake caused by shaky hands.
All focal lengths below are adjusted as if cropped to 20MP.
600mm+
- Sony RX10M4 (1.1kg, 24-600mm, F2.4-4)
- Sony a6600 + Sony E 70-350mm (1.1kg, 115-575mm, F4.5-6.3)
Some people regard this as the successor to the RX10M4, with the new Real-time Tracking autofocus technology which can "seamlessly and reliably transition from subject tracking to face detection and finally to eye detection". - There are other approaches to reach 600mm with a light weight, for example: Olympus E-M5 III + Olympus 75-300mm II (0.8kg, 150-600mm, F4.8–6.7)
- Olympus E-M5 III + Panasonic Leica 100-400mm (1.4kg, 200-800mm, F4.0-6.3)
- Olympus E-M5 III + Olympus 100-400mm (1.5kg, 200-800mm, F5.0-6.3)
- (Discontinued) A Nikon 1 series camera (here represented by Nikon 1 J5 as it's the only one in the series with >=20MP) + Nikon 1 70-300mm (0.8kg, 194-830mm, F4.5-5.6)
- Fujifilm X-T30 + Fujifilm XF 70-300mm + Fujinon XF2X TC (1.1kg, 239-1026mm, F8-11)
Courtesy of Fzuseruk (Labe) and Martin_99. This article has more information on the mentioned lens and teleconverter.
- Olympus E-M5 III + Olympus 100-400mm + Olympus MC-14 1.4x Teleconverter (1.6kg, 280-1120mm, F7.1-9.0)
- Olympus E-M5 III + Olympus 300mm F4 Pro + Olympus MC-20 2x Teleconverter (1.8kg, 1200mm, F8.0)
- Canon EOS R5 + Canon RF 800mm F11 (2.0kg, 1200mm, F11)
- Fujifilm X-T30 + Fujifilm XF 100-400mm + Fujinon XF2X TC (1.9kg, 342-1368mm, F9-11)
Courtesy of Fzuseruk (Labe) and Martin_99. This article has more information on the mentioned lens and teleconverter.
- Olympus E-M5 III + Olympus 100-400mm + Olympus MC-20 2x Teleconverter (1.7kg, 400-1600mm, F10-13)
- Olympus E-M5 III + Olympus 150-400mm F4.5 TC1.25x Pro + Olympus MC-20 2x Teleconverter (without using the internal 1.25x TC: 2.4kg, 600-1600mm, F9.0)
- Olympus E-M5 III + Olympus 150-400mm F4.5 TC1.25x Pro + Olympus MC-20 2x Teleconverter (using the internal 1.25x TC: 2.4kg, 750-2000mm, F11)
The P950 and P1000 are ultrazoom slow shooters that work best on a tripod:
Nikon P1000, 2000mm, 1/15s, own work
So naturally their owners here may want long-zoom snapshooters for sports, action and BIF to complement these ultrazoom slow shooters, and wise, lazy people want solutions that are as light as possible.
Sony RX10M4, 600mm, 1/2500s, an official sample photo from Sony
I just completed an exhaustive study on lightweight long-zoom snapshooters and actually I didn't find anything new. The usual 3 lightest solutions are:
* F7.1-9.0 (with TC) is according to this YouTube video at 2:46.
- Sony RX10M4 (1.1kg, 24-600mm, F2.4-4)
- Olympus E-M5 III + Panasonic Leica 100-400mm (1.4kg, 200-800mm, F4.0-6.3)
- Olympus E-M5 III + Olympus 100-400mm + Olympus MC-14 1.4x Teleconverter (1.5kg (without TC) / 1.6kg (with TC), 200-800mm (without TC) / 280-1120mm (with TC), F5.0-6.3 (without TC) / F7.1-9.0 (with TC)*)
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