Search found 83 matches

by Stanley
Wed Jun 03, 2020 12:17 pm
Forum: Equipment Discussions
Topic: USB microscopes
Replies: 2
Views: 714

Hi bralex,

Thank you for your reply. That was very useful.

Stanley
by Stanley
Tue Jun 02, 2020 8:10 pm
Forum: Equipment Discussions
Topic: USB microscopes
Replies: 2
Views: 714

USB microscopes

Hi everyone, I was thinking of buying a USB microscope just to see what I could do with it. You understand what I am talking about, right? Something to get an image onto my computer screen and then be able to capture that image, I guess as a JPEG or a TIFF. I am not looking at imaging anything in pa...
by Stanley
Tue Aug 27, 2019 6:25 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi Rik,

Fantastically useful information.

Thank you so much.

Stanley
by Stanley
Mon Aug 26, 2019 8:31 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi Rik (and of course anyone else), Your explanation of pixels with my 3.99 mm iPhone 8 Plus focal-length camera really intrigued me. It got me to wondering if I could determine the actual size of an object from its image, since I do have information on the pixel values. I was recently at a botanica...
by Stanley
Mon Aug 26, 2019 6:22 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi Rik,

Thank you so much for the great explanation. You are an amazing teacher.

Also, I am glad to learn about the website to which you linked (gsmarena).

Stanley
by Stanley
Mon Aug 26, 2019 4:33 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Re: Its comparing apples to oranges

Both of the iPhone 8+ cameras are 12MP cameras, and both share a common die size, however the wide camera has has a larger pixel pitch ( 1 vs ~1.22 um ) . So the ratio will not be 2:1. It should be something like 2 * ( 1 / 1.22 ) = 1.64:1 which is certainly close enough to your observed value. -- B...
by Stanley
Mon Aug 26, 2019 2:05 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi Bob,

OK. That was very useful. Thank you.

You have a nice website, by the way.

Stanley
by Stanley
Sun Aug 25, 2019 8:00 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Pau wrote:Perhaps the sensor size is different.
Hi Pau,

Could you please explain in a bit more detail what you mean by that.

Stanley
by Stanley
Sun Aug 25, 2019 7:43 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi George and anyone else, Now I understand my confusion on the focal-length issue. I can formulate the question, but I don't know the answer. The 2X optical zoom should produce an image twice as large as does the 1X optical zoom. To test this, I used my iPhone 8 Plus to take a picture of my house, ...
by Stanley
Thu Aug 22, 2019 5:13 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

FWIW, I was looking at some images in my Lightroom, knowing I took both 1X and 2X pix with a iPhone XS Max. They all show up as 3024 x 4032, but one has a Focal Length of 6mm and the other as 4.25mm. That means it is really Optical, not digital 2X. Should be the same for you iPhone 8 Plus. George H...
by Stanley
Thu Aug 22, 2019 5:08 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

grgh wrote:Stanley

Had the package from HRT for nearly ten years, got it just after they first bought it out.

you should really get into all its usage as its fascinating just how powerful it can be.

All the best.
Hi grgh,

Well, with your credentials, then I know that the apps are good.

Stanley
by Stanley
Thu Aug 22, 2019 5:05 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Stanley, Thanks for alerting me to the existence of Hunter Research & Technology's Theodolite app. I took a look at it and decided it would be well worth the $6 price for things I do. I also like their other apps, such as Professional Compass, professional altimeter, Nav Camera, and Weather. I ende...
by Stanley
Tue Aug 13, 2019 12:13 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi Pau,

OK. That's an interesting thought, that I may just be using the telephoto lens.

Stanley
by Stanley
Tue Aug 13, 2019 8:40 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Hi everyone, No one answered by question regarding digital versus optical zoom, and of course none of you nice people were obligated to respond. So I continued to further investigate this issue. I was not finding definitive answers, so finally I contacted Hunter Research & Technology (let’s call it ...
by Stanley
Fri Aug 09, 2019 7:21 am
Forum: Macro and Micro Technique and Technical Discussions
Topic: Is the 2X zoom on an iPhone 8 Plus digital or optical zoom
Replies: 26
Views: 6641

Is the 2X zoom on an iPhone 8 Plus digital or optical zoom

Hi everyone,

I recently took some macro shots using my iPhone 8 Plus at 2X zoom. I thought that 2X on the iPhone 8 Plus was optical zoom.

But the EXIF information on my photographs called my 2X “DigitalZoomRatio.” So, please, is the 2X zoom on my camera optical or digital?

Thank you.

Stanley