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04-29-2020, 12:56 PM   #1
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77mm 645 lens hoods

Hi All,
Found a good deal on mint condition 645 FA 400 lens, but it doesn't have a hood.

The OEM hood for that lens is a PH-RBE77, but those seem to be hard to find and expensive.
The hood from my 90 Macro, which is an RBL77 fits, but not perfectly, there is a little bit of a gap.
The 80-160 has a 77mm hood, RBF77. Does anyone have an 80-160 and an FA400 and if so can you see if the 80-160 hood fits well on the 400?
Or if you have a DA*300, can you see if the hood from that(RBK77) fits well on the 400?

Thanks,
Steve

04-29-2020, 04:58 PM   #2
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QuoteOriginally posted by SteveinSLC Quote
Hi All,
Found a good deal on mint condition 645 FA 400 lens, but it doesn't have a hood.

The OEM hood for that lens is a PH-RBE77, but those seem to be hard to find and expensive.
The hood from my 90 Macro, which is an RBL77 fits, but not perfectly, there is a little bit of a gap.
The 80-160 has a 77mm hood, RBF77. Does anyone have an 80-160 and an FA400 and if so can you see if the 80-160 hood fits well on the 400?
Or if you have a DA*300, can you see if the hood from that(RBK77) fits well on the 400?

Thanks,
Steve
The 80-160/4.5 hood that I have fits the 400/5.6. However, the length of the 400 hood is about 120 mm with no cut-outs, while the 80-160 hood is cut away for the FOV corners, has a maximum length of 86 mm and a minimum length of 58 mm. If you use the 80-160 hood, then an add-on cylinder of cardboard or other material may be wanted for full glare reduction.

Note: both of my hoods of this type have screw adjustments on the clamping mechanism. If turning is difficult, loosen the screws a tad. Conversely, if the attachment is sloppy, tightening may help. Screws are black on black, so difficult to see in poor light.

The part number on the 80-160 hood agrees with your comment. I cannot find a part number on my 400 hood. The 80-160 hood seems to fit as well as any of my hoods on their respective optics (excluding rubber hoods).
05-04-2020, 02:11 AM   #3
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hoods

if you trying to save $ , the metal screw in 77mm found on Ebay can do the job quite well and you can go quite long as the Z chip is so small and the hoods are optimized for true 645
05-04-2020, 02:27 AM   #4
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My FA*645 300/4.0 also takes the PH-RBE77. The PH-RBK77 hood from my DA* 300/4.0 fits perfectly.

I haven't tried the hood from my FA645 80-160/4.5, but even if it fits I reckon it would be a bit short to work well on a 400mm lens.

05-04-2020, 11:25 AM   #5
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Thanks all. I may just go for that DA* hood. That seems to have the best chance of being close to what the original one was, and it's relatively available.
06-01-2020, 08:14 AM - 1 Like   #6
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To update folks for reference in case anyone has a similar need in the future, the PH-RBK77 hood for the DA*300 does work perfectly on the 645 FA 400.
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