2022年3月6日～March 6, 2022

 

- rainbow gate -

TAMRON SP 180mm F/3.5 MACRO using 31mm Extension Tube on tripod

Shutter Speed = 1/125 sec, ISO = 400, AE = -1.00, F16 

Color temperature = 4400K

using polarized sheet and PL filter

ピント位置を変えてマクロ撮影した８枚のイメージを多深度合成しました。

ピントがあっているところだけを残して８枚を合成するのですが、手前と奥とでは写る範囲が異なる（手前にピントを合わせたときのほうが大きく写る）ため大きさの補正を行う必要があります。

氷の大きさは３ｃｍほど。

氷の手前（太陽側）に偏光シートを置き、レンズ側にPLフィルターを付けて撮影しました。

虹色の発色は偏光シートの効果です。

A multiple depth composite was created from eight macro images taken at different focus positions.

The eight images were combined, leaving only the areas that were in focus, but it is necessary to correct the size of the image because the area in the foreground and the area in the background are different (the image in focus in the foreground is larger than the image in focus in the background).

The size of the ice is about 3 cm.

A polarizing sheet was placed in front of the ice (sun side) and a PL filter was attached to the lens side.

The rainbow coloration is the effect of the polarizing sheet.