Yoshizen's Blog

Empty Town

These photos were taken by the Pentax 110 Auto 24mm lens mounted on the Sony A7R-4 camera, while I took a shopping tour to the centre of London through rock downed empty street. (When I need to get a soy source, I have to go Japanese food shop in the centre.)

As you might have guessed, the advantage of this lens is its small size = almost like a body cap. Together with small mirrorless camera, they easily slip into my pocket. Why do I need to use heavy big lens instead ?

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Cropped Image

These are the photos taken by the Pentax 110 Auto 24mm lens on the Sony A7R-4 body, on my shoping tour to the centre through rockdown London street. Though, the images were heavily cropped —– as if the image was discovered in a corner of the original photo.

Despite its humble origin (came as a £5 junk) the pentax 110, 24mm lens I got, gives quite sharp image, hence, able to give quite usable image even after a heavy crop. So, some of the picture may looks like a telephoto image. ( 25mm lens image cropped to 1/2wide and 1/2hight would be an equibarent of 50mm lens image, or 1/4 x 1/4 would be a 100mm telephoto image.)

And the question IS, how many people in the world need to have the hi-lesi photos ? —– My photos in this blog are about 1200 x 800 (500K), even though the original image from the A7R-4 was 60M (9504 x 6336) —– in the other words, 9500 : 1200 (1/8) , 6336 : 800 (about 1/8), the image cropped down to 1/8 x 1/8 shouldn’t have any trouble on the apparent quality of the image. As we are living with the image originated from the dream or bague memory as well, images may not needed to be pin-sharp or forensicly detailed.

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Afghan Cooking

I took picture of my Afghan friend’s restrant kitchen and their cooking. It was quite a fun. 🙂

—— [Taste of Afghan] 215-219 Rye lane, Peckham. London SE15 Tel: 020-36310310

This is the Afghan version of Nan. It’s huge. And it was baked in the Afghan style huge Tandori oven. Which will be served, hunged upright in the AIR ! —– (I don’t know if that was because their stomach was huge or else —– I didn’t ask. 😀

So, this is it. It was somewhat Mixed-meat full diner — for 5 guests ? (IT may cost about £50 —– I don’t know if £10 for a person was expensive or not.) Anyhow, they are well cooked and taste very good ! Though, I don’t remember any of those cooking’s name. (In fact, I expected more spicy hot. —– I’m a man consuming West Indian Hot Chilly Source, one bottle a month)

In here, I used LED right, instead of flash right — because I wanted to capture a vibrant sense of “being here, while they are cooked” with a movement. — as they themselves must have taken ordinary still photo by their own camera, I wanted to show my way using slower shutter speed for some pictures.

(Lens used was Canon EF 40 mm F2.8 Pancake lens on Canon 5D-Mk3)

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Sony Extension Ring

To prevent the close contact, the postman left a percel from China outside of my door while shouting Your Post = I got an Extension Ring delivered today.

To have an even closer shot, the Extension Ring is a pretty handy device. You may find such ring for Sony (10 mm and 16 mm set) as cheap as £15 on eBay. And depend on the lens used, you may get quite a close-up photo (the shorter the focal length the closer you get —– though, depend on the lens, the closed image might be pretty bad unless you stopped down the F-aperture a lot.

With such a cheap price, I bought 3 or 4 set of Sony Extension Ring. Since, I discovered, not all of them are good. Some loose bayonet make the joint wobbly (only 0.1 mm wider gap of bayonet makes it loose) —– even worse, some of them stack solid (only 0.1 mm longer bayonet claw can block them disengage) = To separate the camera body — Ring — Lens, I needed to hack-saw the ring and with sheer force, I ripped off the Lens ! (Photo above right two = used be the DG-NEX Extension 16 mm ring = the left over after a hack-saw job.) The trouble is, you discover the trouble only when you HAVE engaged the Lens – Ring – Body. = Then you realised that you got the trouble of stacked bayonet. —– Because of the internal mechanism of the bayonet, we can’t see which part was blocking the ring to rotate back.

This IS what made in China meant. On the eBay, you may see many “Sony Extension Ring” with different prices —– Give close looks = The ring came from only few original manufacturer, then, different vender selling it in a different price. = Expensive doesn’t mean good quality. Manufacturer seemed to sold off bad lot for give-away price then, corrupt vender sold them in the net, expecting most of the customer never bothered to complain for £15. —– So, on the end I bought plastic one = Easier to hack-saw and when I needed, easy to brake-off before the lens or the camera body brake. (Sound dreadful isn’t it)

Those potos were taken by the Sony E 3.5 / 30 mm Macro lens with Extension Ring on A7R-4 body (see a photo above, before) Right hand side image was a cloped enlarged part of the original photo left.

So, when you are lucky to have good working Ring you may get quite nice close-up photo —– especially with such A7R-4 / 62MP image sensor, we can clop the image for even higher magnification scale. (Otherwise, such as x5 ~ x10 magnification needs to have quite a hard work — and a specialised expencive Macro Lens.)

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Sony vs Nikon

AI Nikkor 50mm F1.2 on Nikon Z7 / Zeiss Sonner FE 55 mm F1.8 / Pentax 110 Auto 24 mm on Sony A7R4

This is rather repeated subject = compalison of Nikon 50 mm and Zeiss 55 mm lens and the Image Sensor of each 46MP and 62MP.

Z55 F1.8 – A7R4 (100cm away)
AI N 50 F1.2 – A7R4 (F1.2) (lens was mounted through NIK – NEX adapter)
P110 24mm – A7R4 (Center of image was quite good)
AI 50 F1.2 – N Z7 (The same Nikon lens on Nikon Z7 body)
AI 50 F1.2 –F1.2 & F2.0 on N Z7 (when the iris was close to F2 its image get very clear)
P110 24 – N Z7

On this test Nikon Z7 46MP image sensor performed almost as good as Sony. The Pentax 110 Auto 24 mm lens performed very well on both Nikon and Sony body. (hence this tiny lens is the most well used lens on my gajet)

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Macro shots (2)


On this post, all the shots were made by Pentax 110 Auto 24 mm lens on Sony A7R4. And looks like macro shots were the heavily cloped small part of the original photo’s part enlargement —– can you find where it’s came from ?

So, it is clear, a lens I bought for £5 from a junk box, Pentax 110 Auto 24 mm lens has the quality of the (almost) top lens, and the 60MP image sensor of Sony A7R4 can capture (almost) whole amount of those visual information there. Therefore, a wide angle casual shot of a 24 mm lens was in fact, holding the details of the macro level too.

Pretty Good isn’t it ! So, I like this Pentax 110 Auto lens on the Sony A7R4 camera always in my pocket. 😀

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Tagged with:

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 !

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Daikon 2020

So, I’m watching the same windowscape of my kitchen window.

Only a difference in these days was, the leaves of the Daikon head. Which was growing well. Some of you might say that I can cut them small and eat or put in a Miso soup —– I know. But I want them to live free and grow. (I’ve tormented the Daikon root badly enough, boil her alive and eat = I need to make a hypocritical excuse by humainly saving the leaves)

It’s a spring. (Forget the hell outside or the world beyond)

So, the Daikon is having her flower bud —– though, would the flower open or not is the different story.

https://yoshizen.wordpress.com/2017/05/17/daikon-flowers/

When she got 30cm tall, before opening the flowers, she lost a vigor of the life. I couldn’t see any reason why, —– it was same as last time. How shame. (May be I need to learn about the Daikon plant start from its seed, not the left over top of a Daikon food.)

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MP Cherry 2020

Those photos of the Multi-petal Cherry was taken by a homemade lens, NZ-B lens on Nikon Z7


May be in a normal sense, such lens may not serve for a photographical use. Yet still, any image could be an image as long as the author = I wanted. Why not ?

Under the COVID-19 pandemic, our activities and the movement has been restricted, so the picture I am producing may looks one pattern too. (Sorry)

The lens NZ-B seemed to have two glasses of which I re-mounted into a zooming barrel and able to focus from infinity to 1/3 close-up. Still, born to be a simple junk lens the image never be sharp. —— But that was what I wanted. 😀

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A kind of Tree

It seems most of those trees are Oregon Maple in their winter guise.

The lens used was homemade NZ-B lens on the Nikon Z7

Now the street was deserted —– may be because of the spread of the COVID-19, which was said to be 8.000 cases, 400 death in this country, — what can I say.

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