Ports Continued
FLAT PORT
For standard, macro, and telephoto lenses.
Due to refraction flat ports reduce the angle-of -coverage of a lens and at the same time enlarge the image. This makes the flat port ideal when using standard, macro or zoom lenses to shoot small subjects. Note that if a port is long enough to accommodate the full length of a 1:1 macro lens, the lens may vignette when used at infinity. If access to the lens' full range is desired, then select a dome port instead.
FLAT PORT
#5501 | Lens up to 6.3cm (2.5') |
#5502 | Lens 6.3-8.9cm (2.5-3.5') |
#5502.41 .. | Lens 7.9-10.4cm (3.1-4.125') |
#5505 | Lens 8.9-11.4cm (3.5-4.5') |
#5505.45 .. | Lens 10.4-13cm (4.1-5.125') |
#5505.5 ... | Lens 11.4-14cm (4.5-5.5') |
#5505.58 .. | Lens 13-15.5cm (5.1-6.125') |
FLAT PORT WITH FOCUS
For long lenses whose focus collar extends beyond the housing focus. Telephoto lenses longer than 135mm are not recommended.
#5506.. . Lens 8.9-11.4cm (3.5-4.5")
#5506.5 . Lens 11.4-14cm (4.5-5.5')
5507 .... Lens 14-16.5cm (5.5-6.5")
5508 .... Lens 16.5-19cm (6.5-7.5')
5508.05 . Nikkor 105mm lens only