關於Nikon Ai AF 28mm F1.4D遮光罩的問題

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好不容易找到百變妖，確實比較妖！！遮光罩不好找，原廠推薦的HK-7基本屬於古董中的古董。

爬文很久，終於找到一篇國外的介紹，說可以用HK-4代替，比HK-7效果更好，而且可以用85mm 1.4D-IF的遮光罩HN-31代替，用個77mm->72mm的轉介面效果也非常不錯而且77mm的濾鏡也可以一起用了。再有就是用HN-9擰入式的遮光罩也可以，大小長度和HK-7隻差0.5mm，覺得這個倒是很不錯，希望全球只有7000多人才有的鏡頭的主人能找到滿意的遮光罩！

Finally, I bought this classic nikon lens-Ai AF 28mm F1.4D. But I haven't found the hood of this lens yet!
Now that I kown. there are some others way without the original hood HK-7.
Such as HK-4, HN-31 with step down adpater to 72mm, and HN-9 without any other adapter. 
I hope the owners who got this classic lens which made by nikon with limited output about 7000 will get their 
fit hood.

HK-4 HK-7 HN-31 Len Hood Options

Nikon 28mm f/1.4D AF

When I purchased my Nikon 28mm f/1.4D AF Nikkor from Ebay, it came with a HK-7 lens hood. I later did some searching to determine which lens hoods were recommended for the 28mm. I found that most people by default used the Nikon HK-7 hood, but many found it to be rather shallow. Protection from any stray light or debris was minimal. Personally I found the HK-7 to be just fine when shooting pictures with regards to flair, but I did feel the Nikon HK-7 offered limited protection of the front lens area. Later I found two other options. One was the longer Nikon HK-4 lens hood and the other using a 72mm to 77mm step up ring which allowed the 85mm f/1.4 HN-31 lens hood to be used.

I found that the Nikon HK-4 lens hood was the preferred option recommended by several high profile photographers, however the HK-4 hood was extremely difficult to find. Luckily I found two HK-4 lens hoods on Ebay and picked them up right away for a good price. One I got new and the other HK-4 was used. I am very happy with them. The Nikon HK-4 lens hood I feel is a great hood for the Nikon 28mm f/1.4D and highly recommend using it in the place of the HK-7. Both the HK-4 and HK-7 lens hoods are however very difficult to find and you may have to pay a high price for them. Both HK-4’s that I found on Ebay were listed as “Buy Nows” for $35.00 each from separate sellers. I should also mention that both the HK-4 and HK-7 lens hoods are screw on hoods, but I have found them to be very sturdy.

I carry my Nikon D200 and 28mm f/1.4 everywhere now and definitely needed the HK-4 to protect the front end. The HK-7 was just too shallow and I’m glad I made the switch. For those of you who can’t find the HK-4, the 85mm f/1.4 HN-31 lens hood with a step up ring I have heard works very well. This would have been my second option in the event I could not located a Nikon HK-4 lens hood. Surprisingly I found two!!

UPDATE: I recently discovered another lens hood option. I found that the Nikon HN-20 screw-on hood with Hakuba 86mm snap-on lens cap will work excellent with the Nikon 28mm f/1.4D AF. In addition the Hakuba 72mm Rubber Lens Hood works great too, however I prefer metal lens hoods to protect the glass. Still it’s a very good and cheap alternative. In Japan I can get the HN-20, Hakuba 86mm cap, and 72mm Rubber Hood all for under 20 bucks so it was rather cheap to try all this out.

下面是一個人賣28的時候介紹的：

Hi,

I am selling a Nikon 28mm f/1.4 lens and HK-4 hood. The lens will come with a Hoya Pro1 UV filter.

Price is $2400USD, including paypal and shipping.

Condition:
The lens is in perfect condition. The lens surface has no scratches, no lose paints, and has not dropped. The manual/auto focus plastic ring has no cracks. The manual focus ring is smooth and not lose. Front element is perfect; it is always covered by a Hoya Pro1 UV filter. Rear element has only one 1-2mm small 'dot' on the surface in the center (see second last picture). I took so many pictures using this lens and I do not find any flaw in the pictures (even I zoom in 100%).
The hood is perfect and is bigger than the originally suggested HK-7 hood. It attaches the lens very tightly. The hood only shows some signs of usage.

Attached are pictures of the lens. I tried shooting the lens in different views to show the condition of the lens. Last picture is taken by 28mm f/1.4. All pictures are only cropped and auto brightness adjusted via CS2.

Please let me know if you are interested.

Thanks!

Ai AF Nikkor 28mm F1.4D ※本製品の生産は完了しました。

希望小売価格 ¥238,000 (稅込 ¥249,900) JAN：4960759017611

F1.4の明るさを持ち、レンズ群の2箇所の間隔を変化させるダブルフローティング方式や精研削非球面レンズを採用することで、大口徑広角レンズにありがちなコマフレアーを良好に補正。



開放から歪みの少ない點像が得られ、夜景撮影などには大きな効果を発揮。



フォーカシングの際にフィルター枠は回転せず、円偏光フィルターの操作性に優れている。

フード		HK-7別売
レンズ構成		8群-11枚
ED レンズ		0 枚
非球面レンズ		精研削非球面レンズ1枚
畫角		74°
焦點距離目盛り(ズーム)		なし
ズーミングの作動方式		なし
絞り羽根枚數		9枚
最小絞り		16
最短撮影距離		0.35m
最大撮影倍率		1/8.3
フォーカス制限切替スイッチ		なし
M / A モード		なし
フォーカスロックボタン		なし
質量(約)		520g
最大徑×長さ(約) （先端よりバヨネット基準面まで）		75x77.5mm
キャップ		スプリング式
ケース		CL-44別売
三腳座		なし
前側外部フィルター取り付け枠の回転		回転しない
前面外付けフィルターサイズ		72mm（P=0.75)
差込式フィルターサイズ		－－－
內蔵または後端部フィルター		－－－
円偏光フィルター適否		使用可能
円偏光フィルターII適否		使用可能（専用フードHK-7付は使用不可、代替フードHN-9使用可能）
TC-201S		使用可能 （AFレンズに裝著した場合、AF撮影は不可）
TC-301S		使用不可
TC-14AS		使用可能 （AFレンズに裝著した場合、AF撮影は不可）
TC-14BS		使用不可
TC-20E/20E II		使用不可
TC-17E II		使用不可
TC-14E/14E II		使用不可
AF-3		使用可能(0)
AF-4		使用可能(1) ( )內の數字は裝著可能なフード(AF-3:HN-36/AF-4:HN-37)の枚數を表す
赤外指標		あり
付屬品		72mmスプリング式前キャップ・裏ぶたLF-1
絞り環の有無		あり
距離目盛の有無		あり
バヨネットリングの材質		金屬
備考

Ai AF Nikkor 28mm F1.4DのMTF效能曲線図

MTF曲線とは

最後來張我為百變妖重新定製的遮光罩計劃---HK-4