Konu: Lensi ters bağlama

Arkadaşlar merhaba; google amcada arama yaparken Wikipedia da makro fotoğrafçılık ile ilgili bir makaleye denk geldim, buraya kadar her şey normal ama orada gördüğüm bir fotoğraf çok dikkatimi çekti

makalenin linki

Tamron 90mm Makro lensin önüne ters lens bağlamışlar





bunlarda sonuçları









buda makalenin ingilizcesi (ingilizcem olmadığı için ben anlamadım)

English: The DSLR camera Pentax K-7 with macro lens Tamron SP AF 90 mm F/2.8 Di MACRO 1:1 and wide-angle lens smc Pentax-M 28 mm F/2.8 installed in "reverse position", using a coupling ring between both filter threads. This combination allows a three times higher magnification (3.2:1) compared to the macro lens alone (1:1). The focal length of the camera-mounted lens – 90 mm, in this case – is crucial to the magnification ratio (calculation is 90:28 = 3.2). It doesn't need to be a real macro lens, any other telephoto lens with that focal length has the same effect. The usage of a tele lens of 300 mm instead would even lead to a magnification of 10.7:1 (theoretically). In order to achieve a larger depth of field, the aperture ring on the reversed lens should to be closed as far as possible (so, it's very useful to have one there!).
However, the practical benefit of the method is severely limited, since there is just a tiny focal plane at a working distance of only about 4 cm (~1.5 inch). Moreover, the quality of photos taken with this equipment seems to be rather mediocre (see photo links below). For me, this method is just a stopgap. In case I want to create a close-up photo with a strong magnification, now I use the shown macro lens combined with a 2×TC (Soligor; see e.g. this result).

Ben bu yöntemi ilk kez görüyorum, daha doğrusu makineye ters lens bağladım ama lensin önüne ters lens bağlamak hiç aklıma gelmemişti, lense ters lens bağlama konusunda bilgisi tecrübesi olan arkadaşlar varsa bilgi ve tecrübelerini bizimle paylaşırlar mı acaba?