Yoshizen's Blog

Macro shot ?

Z55 – A7R4

Once before I found a trouble of manual focusing in the Sony camera. So, I was testing Zeiss 55mm lens on A7R4 body with Focus peaking and the Focus magnifire. —— This time both function worked well = AND I amazed by its fine details of the captured image. = The silk flower was 100 cm away yet the enlarged image showed a real close-up = macro quality.

Z55 – A7R4

I wonder IF this fine quality came from the quality of the Zeiss Sonner FE 1.8/55 ZA lens or the camera’s 60MP image sensor ?

AI Nikkor 50 – A7R4

For comparison, this one was AI Nikkor 50 mm F1.2 (at F1.2 / 100 cm) on A7R4 (this 50 years old 50 mm lens seems to be a bit softer than Zeiss 55 mm —– But, F1.8 lens got to be sharper than F1.2 !)

AI N 50 – N Z7

Then, how about the AI Nikkor 50 mm F1.2 lens on Nikon Z7 ? It’s haed to tell if a bit softer image was caused by a larger F aperture (F1.2 instead of F1.8) or a bit fewer pixel number (46MP instead of 62MP).

P110-24 – A7R4

On the same setting, I tested it with the remotest possible lens = Pentax 110 Auto 24mm F2.8 lens === 24 mm lens image was far smaller than the 55 mm lens. Still, the enlarged image showed quite a fine detail !

It’s suggests that as long as the lens was seriously designed good lens, its can produces very fine details = IF the resulting image was not very fine, it was because, the camera / image sensor / image processer was not good enough.

P110 – NZ7

This is the comparison = The same Pentax 110 lens was mounted on the Nikon Z7 body through a homemade NEX – NZ adapter. —– Even though the same optical image was projected, the smaller sensor seemed to produces a bit rougher image.

Godo – A7R4

So, see the image of the lens which was not seriousely designed or made = homemade Godo-lens.

NZ-B – N-Z7

Then, how about the image made by yet another fine camera Nikon Z7. —– But (you believe it or not) I don’t have an authentic lens for this Z7. (I’ve been empoverished by its XQD memory (made by Sony), expensive spare battery etc —– I can not afford to buy their lens.)

So, the Z7 camera was tested with another homemade lens, NZ-B lens which showed very fine undefined image !


Tilting Macro Bellows — Field Test

Tilt Bellows(1)A09A1094

Following the test like previous post of homemade bellows, I took it to the park.

Setup was either Micro Nikkor 55 mm or Tamron 90 mm Macro on the bellows

which was mounted on Canon 5D  Mk-III.   And the most of the shots were taken

while the lens was tilted up to 30 degree. (Nikkor 55 mm = up to 20 degree,

Tamron 90 mm = up to 30 degree —– before the corner cut-off starts.)  

And as no F-aperture control, all the photos were taken with

fully open F-aperture.  (And hand held.)

Tilt Bellows(2)126-001

Photo above, Right photo, you may see something strange = why the back petal

was out of focus. —– Because the lens was tilted.

Tilt Bellows(3)124-001

Those photos were the too conspicuous demonstration of the tilting effect.  😀

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But those were a bit more subtle.

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And above left photo was made with Pan-focus effect and

the right was with Shallow-focus effect.

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Shallow focus with rather exaggerated out of focus Bokhe. 

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With the Bellows extension, the lense can give even larger close-up.

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There were a lots of Bees and Bumble Bees though, they were too busy.

This small black fly seemed to taking a rest.

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This Hovering Fly — right 2 photos, she was in the air hovering.

(I needed at least F5.6, not fully open 2.5)

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Looks quite  inconspicuous,  still this photo was benefited by the tilting effect.

—– Tilting the lens works well though, to have full benefit of it need to have it

from infinity, not just on the close-up = But to do it,

I need to make yet another Tilting SLR using DSLR body.   🙂


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