Sony In-Camera Extended Zoom Types Explained (Jpeg Only)

[elliottnewcomb]

Huh?

It is a 5 mp image

one of four 5mp images:

24mm full wide

75mm, like the end of m3m4m5 zoom range

200mm full optical zoom

and 400mm using SZ Smart Zoom, 2.0x (which we ALL know is an optical sensor crop)

The Butterfly was the center of each shot (test shot, not composed photo Nigel)

lets post em again, ALL 5mp. 4 views of 'what you get'.

5mp: OZ 24mm (rx100m3,4,5,6 start 24mm), (m1 and m2 start 28mm)

this was to give a sense of how far away I was, same as m3,4,5

5mp OZ 75mm (essentially the end of rx100m3,4,5 reach)

Now, the new zoom lens

5mp OZ 200mm (a heck of a lot closer than m3,4,5 70 mm OZ limit)

And, the purpose of shooting 5mp was to show the maximum SZ Smart Zoom Optical Sensor Crop of the then new m6.

5mp SZ 400mm

David, you need to view the original, then right click to 'save as'.

Here is what this SZ400mm looks like as a desktop image on my 27" monitor

That image is 19-3/4" wide x 13-1/4" high, a little bigger than intended, but wow.

.......................

Color: It photographed differently than it looks, the color orange on my monitor matches the original, this photo, WB did this for some reason I don't care to figure out.

So, here we go with misunderstanding because a thumbnail was downloaded. This subject is a misunderstanding waiting to be misunderstood.

--
Elliott

 

[elliottnewcomb]

ONLY 5MP????? WHO WOULD DO THAT?

Here is a link to a Mini-Challenge for under 6mp images! Some beauties

https://www.dpreview.com/forums/thread/3492846

I am primarily interested in 10mp SZ 280mm optical crops, which gives me enough reach for soccer or ice hockey, or softball except the outfield.

I cannot say it enough: The advantages of seeing magnified, anticipating, timing you shot is far more important than just some extra zoom. It's IQ doesn't need to be better, but 'good enough' and the tactical advantage cannot be ignored, because that is what facilitates the result.

 

[Horacecoker]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

one of four 5mp images:

24mm full wide

75mm, like the end of m3m4m5 zoom range

200mm full optical zoom

and 400mm using SZ Smart Zoom, 2.0x (which we ALL know is an optical sensor crop)

The Butterfly was the center of each shot (test shot, not composed photo Nigel)

lets post em again, ALL 5mp. 4 views of 'what you get'.

5mp: OZ 24mm (rx100m3,4,5,6 start 24mm), (m1 and m2 start 28mm)

this was to give a sense of how far away I was, same as m3,4,5

5mp OZ 75mm (essentially the end of rx100m3,4,5 reach)

Now, the new zoom lens

5mp OZ 200mm (a heck of a lot closer than m3,4,5 70 mm OZ limit)

And, the purpose of shooting 5mp was to show the maximum SZ Smart Zoom Optical Sensor Crop of the then new m6.

5mp SZ 400mm

David, you need to view the original, then right click to 'save as'.

Here is what this SZ400mm looks like as a desktop image on my 27" monitor

That image is 19-3/4" wide x 13-1/4" high, a little bigger than intended, but wow.

.......................

Color: It photographed differently than it looks, the color orange on my monitor matches the original, this photo, WB did this for some reason I don't care to figure out.

So, here we go with misunderstanding because a thumbnail was downloaded. This subject is a misunderstanding waiting to be misunderstood.

You're not kidding!

David

 

[elliottnewcomb]

Huh?

In the post above, I clicked 'view original', it got large, then I right clicked 'save as'. it downloaded, it is the same as my original 2736x1824 = 5mp

here it is again, this time the downloaded one called what size?

--
Elliott

 

[Digital Nigel]

Huh?

In the post above, I clicked 'view original', it got large, then I right clicked 'save as'. it downloaded, it is the same as my original 2736x1824 = 5mp

here it is again, this time the downloaded one called what size?

Yes, I agree, it's definitely a 2736x1824 image.

 

[Digital Nigel]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

The view on my 4K monitor. The thumbnail is on the left, the original image on the right, both displayed at 100%

one of four 5mp images:

24mm full wide

75mm, like the end of m3m4m5 zoom range

200mm full optical zoom

and 400mm using SZ Smart Zoom, 2.0x (which we ALL know is an optical sensor crop)

The Butterfly was the center of each shot (test shot, not composed photo Nigel)

lets post em again, ALL 5mp. 4 views of 'what you get'.

5mp: OZ 24mm (rx100m3,4,5,6 start 24mm), (m1 and m2 start 28mm)

this was to give a sense of how far away I was, same as m3,4,5

5mp OZ 75mm (essentially the end of rx100m3,4,5 reach)

Now, the new zoom lens

5mp OZ 200mm (a heck of a lot closer than m3,4,5 70 mm OZ limit)

And, the purpose of shooting 5mp was to show the maximum SZ Smart Zoom Optical Sensor Crop of the then new m6.

5mp SZ 400mm

David, you need to view the original, then right click to 'save as'.

Here is what this SZ400mm looks like as a desktop image on my 27" monitor

That image is 19-3/4" wide x 13-1/4" high, a little bigger than intended, but wow.

.......................

Color: It photographed differently than it looks, the color orange on my monitor matches the original, this photo, WB did this for some reason I don't care to figure out.

So, here we go with misunderstanding because a thumbnail was downloaded. This subject is a misunderstanding waiting to be misunderstood.

You're not kidding!

Indeed so. You were clearly confused.

 

[Horacecoker]

Huh?

In the post above, I clicked 'view original', it got large, then I right clicked 'save as'. it downloaded, it is the same as my original 2736x1824 = 5mp

here it is again, this time the downloaded one called what size?

I meant in your previous post before your last one! That's why I couldn't understand your 'Huh' as if I'd made the mistake. If you'd said - yes I goofed and posted a tiny 0.2mp instead of this 5mp one, it would have made a lot more sense and perhaps I wouldn't have been as abrupt with my reply.

At 5mp the image has come out great - and I wouldn't have dreamed of upscaling it if you'd posted it at this size first time round. I obviously know it's just a crop and no form of digital zoom has been applied. I knew this too with the the original image you posted. I just had no idea you'd downsized it to the size of a postage stamp. Why would I think that when you went to a lot of trouble showing off the end result. It turned out it wasn't the end result after all.

You haven't been taking double strength senile pills by any chance have you? :-D Like me, I'd stick to the regular variety.

David

 

[D Lynch]

This is a great resource for me.

The RX100 punches above its weight. These features help me get images that I need.

I used to carry two P&S cameras. My RX100, and a travel zoom camera made by Panasonic.

With your help I only carry my Rx100-2.

 

[Horacecoker]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

one of four 5mp images:

24mm full wide

75mm, like the end of m3m4m5 zoom range

200mm full optical zoom

and 400mm using SZ Smart Zoom, 2.0x (which we ALL know is an optical sensor crop)

The Butterfly was the center of each shot (test shot, not composed photo Nigel)

lets post em again, ALL 5mp. 4 views of 'what you get'.

5mp: OZ 24mm (rx100m3,4,5,6 start 24mm), (m1 and m2 start 28mm)

this was to give a sense of how far away I was, same as m3,4,5

5mp OZ 75mm (essentially the end of rx100m3,4,5 reach)

Now, the new zoom lens

5mp OZ 200mm (a heck of a lot closer than m3,4,5 70 mm OZ limit)

And, the purpose of shooting 5mp was to show the maximum SZ Smart Zoom Optical Sensor Crop of the then new m6.

5mp SZ 400mm

David, you need to view the original, then right click to 'save as'.

Here is what this SZ400mm looks like as a desktop image on my 27" monitor

That image is 19-3/4" wide x 13-1/4" high, a little bigger than intended, but wow.

.......................

Color: It photographed differently than it looks, the color orange on my monitor matches the original, this photo, WB did this for some reason I don't care to figure out.

So, here we go with misunderstanding because a thumbnail was downloaded. This subject is a misunderstanding waiting to be misunderstood.

You're not kidding!

Indeed so. You were clearly confused.

Take back those words please! I cannot believe you didn't check the facts before writing them!

David

 

[sybersitizen]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

Hey guys ...

That original post in this thread indeed contains two very tiny and essentially useless butterfly image files.

In order to get the 5mp versions it is necessary to look below those images to the text that says "from this old thread" and click the link there to see a different post in an older thread, and get those files instead.

 

[Digital Nigel]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

Hey guys ...

That original post in this thread indeed contains two very tiny and essentially useless butterfly image files.

In order to get the 5mp versions it is necessary to look below those images to the text that says "from this old thread" and click the link there to see a different post in an older thread, and get those files instead.

Yup, that's what I did.

 

[Horacecoker]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

Hey guys ...

That original post in this thread indeed contains two very tiny and essentially useless butterfly image files.

In order to get the 5mp versions it is necessary to look below those images to the text that says "from this old thread" and click the link there to see a different post in an older thread, and get those files instead.

Yup, that's what I did.

So that's makes everything you said to me right does it?

 

[Digital Nigel]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

Hey guys ...

That original post in this thread indeed contains two very tiny and essentially useless butterfly image files.

In order to get the 5mp versions it is necessary to look below those images to the text that says "from this old thread" and click the link there to see a different post in an older thread, and get those files instead.

Yup, that's what I did.

So that's makes everything you said to me right does it?

Sorry, I assumed that all of Elliott's posts used the same image. It seems I was wrong.

 

[Horacecoker]

Huh?

It is a 5 mp image

Huh?

The image you posted was 0.2mp.

No, Elliott posted a 5mp image, as he said. You've just copied the in-line thumbnail.

As Elliott has said, you need to copy the original version, not the small thumbnail DPR produces.

You are completely wrong!

In the first post in this thread where the butterfly image appeared, I downloaded the full size image Elliott posted of his final crop. I did not and never have downloaded a ruddy thumbnail. The image Elliott posted is exactly the size I said it was.

Check the post yourself https://www.dpreview.com/forums/post/62414937

Hey guys ...

That original post in this thread indeed contains two very tiny and essentially useless butterfly image files.

In order to get the 5mp versions it is necessary to look below those images to the text that says "from this old thread" and click the link there to see a different post in an older thread, and get those files instead.

Yup, that's what I did.

So that's makes everything you said to me right does it?

Sorry, I assumed that all of Elliott's posts used the same image. It seems I was wrong.

Thanks for apologising,

David

 

[elliottnewcomb]

Horacecoker wrote

CIZ crops the image, then upscales (adds pixels) using an algorithm. The resultant image retains the native pixel resolution and the same individual size of the sensor pixels.

Digital Zoom is entirely different, after the crop it merely increases the size of the remaining pixels, there is no algorithm involved. It is exactly the same as when you zoom past 100% on a monitor screen. 200% makes the individual pixels twice as big and as a result the image looks awful. Zoom to 400% and it looks ghastly!

This why nobody should ever use any form of digital zoom that increases individual pixel size. And certainly never go beyond CIZ into Sony's Digital Zoom. The results will be dreadful.

I've now done a test of CIZ vs Sony DZ. I shot the same scene, with max DZ and max CIZ. I then cropped the same small part of the scene from both:


CIZ


Digital zoom

Beautiful Work Nigel.

here's 5mp image size

5mp 200mm OZ

5mp SZ Smart Zoom,400mm, in-camera crop, no processing

from this old thread

https://www.dpreview.com/forums/thread/4305652

David is right, these two are postage stamp size. I have NO IDEA how they got that small, I have no small versions on my computer. Anyway, triple confusion solved. I'm glad everyone got to see the 5mp original,

AND, did anyone go thru that mini challenge about under 6mp images?????

--
Elliott

 

[Horacecoker]

Horacecoker wrote

CIZ crops the image, then upscales (adds pixels) using an algorithm. The resultant image retains the native pixel resolution and the same individual size of the sensor pixels.

Digital Zoom is entirely different, after the crop it merely increases the size of the remaining pixels, there is no algorithm involved. It is exactly the same as when you zoom past 100% on a monitor screen. 200% makes the individual pixels twice as big and as a result the image looks awful. Zoom to 400% and it looks ghastly!

This why nobody should ever use any form of digital zoom that increases individual pixel size. And certainly never go beyond CIZ into Sony's Digital Zoom. The results will be dreadful.

I've now done a test of CIZ vs Sony DZ. I shot the same scene, with max DZ and max CIZ. I then cropped the same small part of the scene from both:


CIZ


Digital zoom

Beautiful Work Nigel.

here's 5mp image size

5mp 200mm OZ

5mp SZ Smart Zoom,400mm, in-camera crop, no processing

from this old thread

https://www.dpreview.com/forums/thread/4305652

David is right, these two are postage stamp size. I have NO IDEA how they got that small, I have no small versions on my computer. Anyway, triple confusion solved. I'm glad everyone got to see the 5mp original,

They truly are tiny Elliott but did you know that Nigel now holds the record for the smallest image ever posted in this forum? It actually contains nil MP!

Here is the little beauty.

David

 

[elliottnewcomb]

bounce

 

[elliottnewcomb]

other Extended Zoom thread, Images (and lots of yap)

https://www.dpreview.com/forums/thread/4375775

update 3-19-19 (SZ with CIZ or without CIZ

Two ways to use SZ: a. SZ with CIZ. b. SZ without CIZ (via ST SmartTelecon Toggle).

a. SZ with CIZ (if CIZ is turned on in the main menu): Allows CIZ only at 20mp; and both SZ and CIZ at 10mp and 5mp image sizes, SZ occurs automatically/progressively after OZ, then allows the continuation into CIZ. Sections/magnifier icons appear in the zoom bar to indicate OZ, SZ, CIZ as you enter/exit them.

a1. You must change the image size yourself to get SZ at 10mp and 5mp. (put image size in your Fn menu).

b. SZ without CIZ via ST Smart Telecon. Smart Telecon Toggle is only available if CIZ is turned off in the menu. It is a SZ Tobble.

b1. you assign ST to a custom key (I use C button, I can find it while keeping my eye on the EVF).

b2. 20mp Image Size: OZ Only (no SZ at 20mp, and CIZ must be off)

b3. press your assigned key once: it toggles to SZ 1.4x. That automatically changed the image size to 10mp for you.

b4. press key a second time: it toggles to SZ 2.0x. That automatically changes the image size to 5mp.

b5. press key a 3rd time, it toggles back to both OZ and 20mp image size.

You jump: 200mm; 280mm; 400mm; 200mm (20mp; 10mp; 5mp; 20mp.

After you have jumped to either 1.4x or 2.0x, you can use your zoom lever to back up from that maximum, i.e. back from instant jump to 1.4x 280mm zoom lever back to 1.2x 240mm

...................................

I am using method b. SZ without CIZ, (via Smart Telecon via C button), because it is instant to get into and out off, whereas method a. is a slow progressive zoom, both OZ and CIZ, slow to get back to OZ also. And, method a. to get SZ you have to manually change the image size. That allows the potential to forget and leave it in 10 or 5 mp, thinking you are shooting 20mp..

In-Camera Extended Zoom Types Explained

(Jpeg Only) ....... please don’t have the RAW vs Jpeg discussion here. ......

examples are based on rx100m6 (see VII. for all other RX models)

..........................................

CONDENSED VERSION

OZ (Optical Zoom) … SZ (Smart Zoom) … CIZ (Clear Image Zoom) … DZ (Digital Zoom)

x Factors: (OZ = 1.0x) (SZ @ 10mp = 1.4x; @ 5mp = 2.0x) (CIZ @ 20mp = 2.0x; @ 10mp = 2.8x; @ 5mp = 4.0x)

EXTENDED Focal Length = Optical Focal Length … multiplied by … Sony x Factor (i.e. 200mm x 1.4x = 280mm)

EXIF Digital Zoom Line (exact) is the Same as Sony’s ___x Factor (rounded). OZ is EXIF Digital Zoom: 1.

Exceeding OZ: a magnifying glass icon appears on the zoom bar with a number ( the x Factor) (the __x Factor increases as you keep zooming, i.e. 1.3x … 1.4x, … 2.8x … 4.0x). EXIF Digital Zoom Line Exceeds 1.

…………………………………….

All rx100’s and RX10’s have: OZ, SZ, CIZ, DZ.

Later models also have ST (Smart Telecon) which is a Method of Toggling SZ.

RX1’s have ST and CIZ. (ST via AEL button): Toggles Sensor Crops: 50mm; 70mm; back to 35mm. (CIZ via right rocker) zooms 1.1x to 2.0x = 36-70mm

……………………………………..

OUTLINE

I. Simple Definitions of OZ; SZ; ST; CIZ; DZ

II. Why Use Them? My Reasons.

III. Confusions

IV. Detailed Explanations of SZ AND CIZ

V. ST (Smart Telecon) a Method of SZ Toggle) (no CIZ using ST)

VI. EXIF and EXIF Deductive Math (diplomas will be given)

VII. ALL RX Models Extended Zoom Ranges

……………………………………………….

I. SIMPLE DEFINITIONS of OZ; SZ; ST; CIZ; DZ:

OZ = Optical Zoom

SZ = Smart Zoom = In-Camera Optical Sensor Crop, no digital processing. Only at 10mp or 5mp image sizes

ST = Smart Telecon = a method of Rapidly Toggling SZ. (No CIZ using ST). no digital processing.

CIZ = Clear Image Zoom = In-Camera Optical Sensor Crop and In-Camera Digital Processing (upscaling: inventing, guessing, creating new pixels digitally)

DZ = Digital Zoom. All Digital Processing. I never tried current DZ, Anyone???.

……………………………………………………..

II. WHY USE THEM? My reasons.

Lightweight Extra Zoom for:

Effortless; Occasional/Situational Use; Surprisingly Good (good enough for you?)

View/Focus/Meter while magnified. Discover something you were otherwise unaware of. You can combine extra zoom with focus magnification assist (very magnified). Magnification gives the ability to see your remote subject clearly, and, because so visible you can wait for something to finish the shot:

i.e. bird winks at you, lion lifts his head, croc swallows something, cloud moves, momentary stillness, wind blows a branch in or out of the way, truck making shadow/blocking ….. moves, a myriad of things not easily visible if viewing OZ shorter focal length, perhaps not ideal timing revealed in a post crop.

Both focus and metering automatically change to full screen area size. That seems a disadvantage, however you are zoomed in so much that full screen area size is perhaps smaller than spot area size from afar using OZ. Focus and Metering systems see only your magnified area.

ALL Extra Zoom retains/uses the camera’s aperture at the end of optical zoom. IF IQ good enough for you, the retained aperture can actually beat a longer optical lens that is darker/higher iso/noise/requires longer shutter speed/blur.

In all cases, zoom scales and icons appear on the LCD and EVF. In all cases, because they are progressive, you can leave them on and not use them, or, keep zooming a little, or a lot, as desired.

SZ and CIZ are far better than any past DZ you might have seen.

I always say, even RAW shooters: “At least try them so you know”. If interested: keep checking these features out on each new model/processor: CIZ upscaling algorithms progressively improve. In-camera processing power increases.

……………………………………………………..

III. CONFUSIONS

Is it Digital Zoom? OZ and SZ: No. CIZ: Partly. DZ: Totally

SZ or CIZ are often erroneously called Digital Zoom. This leads to misunderstandings.

Extra Zooms are entered/used Sequentially: OZ, then SZ automatically, then optionally CIZ or DZ with CIZ.

EXIF shows all extra zoom in a separate line: ‘Digital Zoom’ (Sony SZ, CIZ, DZ names are gone) (EXIF notes part VI)

SZ Automatically Occurs at 10mp or 5mp image sizes (no menu option)

CIZ or DZ are Optionally Engaged: CIZ without DZ, or DZ which also engages CIZ (CIZ occurs before DZ).

SZ and CIZ can be engaged together and will be entered/used progressively.

ST is a Method of using SZ, not a separate zoom type.

Extra Zoom Power, both SZ and CIZ Increases when you Decrease the Image Size

Jpeg Compression is Independent of OZ, SZ, CIZ. If using Jpeg Extra Fine, everything will be Extra Fine.

……………………………………………………..

IV. DETAILED EXPLANATIONS of SZ and CIZ

SZ Smart Zoom (medium 10mp and small 5mp image sizes only, no SZ at 20mp)

An optical in-camera sensor crop, with no other in-camera processing. It is the same as a crop you would make later in software. No extra pixels created. Crops have increasingly fewer pixels. An in-camera SZ crop, and a matching crop in your software will have the same # of pixels. Of course post crops can be of either Jpeg or RAW images.

SZ is Automatically Engaged (if/when you use 10mp or 5mp Image Sizes). There is no menu option. Watch the zoom bar/listen to the zoom motor, using 10mp or 5mp image size, after 200mm OZ a magnifier icon appears with a number i.e. 1.3x.

20mp image size: SZ: None. CIZ, if engaged, starts after the end of OZ

10mp image size: SZ range is 1.1x to 1.4x. (201-280mm max optical crop, no upscale),

5mp image size SZ range 1.1x to 2.0x (201-400mm max optical crop, no upscale).

…………………………………….

CIZ Clear Image Zoom (optional, you must turn it on in the menu) (always double the extra reach of SZ)

Two stages: In-Camera Optical Sensor Crop AND In-Camera Digital Processing (up-scaling, new pixels created. upscaled to the original Image size being used.

It is progressive: use it some, some new pixels are created. Use it more, more pixels are created.

A simplification: 20mp image size, full CIZ use for 400mm: stage one: optical sensor crop of 20mp image size. Let’s say that results in 10mp. Stage two: upscale, digitally guess and create 10mp new pixels to get back to full 20mp pixel count.

This is the part where improving algorithms play a part. And, improving processors need to be capable and quick.

It is the same as if you later made a matching crop from a 20mp optical shot, (now 10mp left), and then upscale digitally in your software, back to 20mp. Difference is: you did not see magnified when shooting, however you may prefer your software, and your computer’s processing. Of course post crops can be of either Jpeg or RAW images.

If you compare an in-camera CIZ to a post crop that has not been upscaled, the CIZ will have more pixels, the larger the crop, the larger the pixel difference is.

For me, this is where SZ and CIZ being EFFORTLESS begins and ends. Then, is it good enough?

……………………………………………………..

V. ST Smart Telecon = a method of Rapidly Toggling SZ as fixed steps, not progressive zoom. Image Sizes are also Toggled Automatically. Magnifier Icon with x Factor appears on lcd.

You Must Assign Smart Telecon to a Custom Key (button or rocker).

While shooting OZ 20mp Image Size:

1st press instantly jumps to SZ 1.4x (and changes to 10mp image size)

2nd press instantly jumps to SZ 2.0x (and changes to 5mp image size)

3rd press, jumps back to OZ 1.0x 20mp Image Size.

……………………………………………………..

VI. EXIF

SZ, CIZ, DZ: Sony’s Names Disappear in EXIF. EXIF calls them all ‘Digital Zoom’

EXIF has 3 lines for zoom information.

1. Focal Length (actual lens focal length, irrespective of sensor size).
2. 35mm Focal Length (equivalent to 35mm film/FF Sensor) (the crop factor math is calculated for you)
3. Digital Zoom. ALL Optical Photos, show ‘Digital Zoom: 1 (which means no extra zoom used).

EXIF Digital Zoom: a # greater than 1 indicates the use of some type of extended zoom with any camera. Multiply the Digital Zoom # by the 35mm equivalent Focal Length i.e. 200mm x 1.3000 = 260mm (35mm equivalent).

EXIF Digital #s (exact) Correspond to Sony’s __x #s (rounded). i.e. Sony SZ 1.4x: EXIF # might be 1.43456

………………………..

EXIF DEDUCTIVE MATH (is this OZ, an OZ Crop, SZ or CIZ)?

If Digital Zoom 1. It is OZ or OZ Crop

If Digital Zoom greater than 1. It is SZ or CIZ. Which One? answer depends on the image size:

20mp image size: (no SZ at 20mp). CIZ from 1.1000 to 2.0000 = 201-400mm max

10mp image size: SZ first, 1.1000 to 1.4000 = 201-280mm max; then CIZ begins 1.4100 to 2.8000 = 281-560mm.

5mp image size: SZ first, 1.1000 to 2.000 = 201-400mm then CIZ begins 2.1000 to 4.000 = 401-800mm.

……………………………………………………..

VII. ALL RX MODELS EXTENDED ZOOM RANGES

Reminder: SZ = Optical Sensor Crop. CIZ = Optical Sensor Crop + Digital Upscaling

a. rx100m6 OZ 24-200mm (used in examples above) (RX10m1,2 are the same)

20 mp image size: OZ, then CIZ 1.1x to 2.0x: (201-400mm max CIZ) (no SZ at 20mp image size)

10mp image size: OZ, then SZ 1.1x to 1.4x (201-280mm max SZ) then CIZ 1.5x to 2.8x (281-560mm max CIZ)

5mp image size: OZ, then SZ 1.1x to 2.0x (201-400mm max SZ) then CIZ 2.1x to 4.0x (401-800mm max CIZ)

b. rx100m1,m2 OZ 28-100mm

20 mp image size: OZ, then CIZ 1.1x to 2.0x: (101-200mm max CIZ) (no SZ at 20mp image size)

10mp image size: OZ, then SZ 1.1x to 1.4x (101-140mm max SZ) then CIZ 1.5x to 2.8x (141-280mm max CIZ)

5mp image size: OZ, then SZ 1.1x to 2.0x (101-200mm max SZ) then CIZ 2.1x to 4.0x (201-400mm max CIZ)

b. rx100m3,4,5 OZ 24-70mm

20 mp image size: OZ, then CIZ 1.1x to 2.0x: (71-140mm max CIZ) (no SZ at 20mp image size)

10mp image size: OZ, then SZ 1.1x to 1.4x (71-100mm max SZ) then CIZ 1.5x to 2.8x (101-200mm max CIZ)

5mp image size: OZ, then SZ 1.1x to 2.0x (71-140mm max SZ) then CIZ 2.1x to 4.0x (141-280mm max CIZ)

c. RX10m1,m2: OZ 24-200mm = same range as rx100m6 #s above

d. RX10m4 OZ 24-600mm (get ready for some big numbers)

20 mp image size: OZ, then CIZ 1.1x to 2.0x: (601-1,200mm max CIZ) (no SZ at 20mp image size)

10mp image size: OZ, then SZ 1.1x to 1.4x (601-840mm max SZ) then CIZ 1.5x to 2.8x (841-1,680mm max CIZ)

5mp image size: OZ, then SZ 1.1x to 2.0x (601-1,200mm max SZ) then CIZ 2.1x to 4.0x (1,2011-2,400mm max CIZ)

e. RX1r, RX1rII OZ fixed 35mm, and ST (SZ toggled) 50mm and 70mm optical sensor crops, and CIZ 36-70mm

…………………………………………………….

End of notes.

 

[D Lynch]

Optical Glass, 1200mm f5.6

https://www.bhphotovideo.com/explor...raphic-journey-legendary-canon-ef-1200mm-lens

Love this!

Memories...used to receive a printed newsletter from Leica (owned an M3 system, then an M4P system)

It would show Leica users with telephoto lenses that looked to be a meter long. I couldn't afford their wide angle lens, and certainly couldn't dream of owning these long lenses, but I appreciated learning more about other lenses in the system.

This Canon story is incredible. I love the photo of a photographer using one, with him circled by people taking photos with P&S cameras. I love the thought that some little travel zoom cameras take acceptable images of far distant subjects. I wonder what the photographers who took daguerrotypes (sp?) of civil war battles would think if they travelled through time and saw the gear we can use now?

When I attended the Nikon School first time the lecturer talked about carrying his long telephoto in a huge wooden box on the trunk rack on his sports car! That was in about '72...

We're so lucky to have cameras like the RX10-4 and others now.

--
DaveL
Toronto

 

[D Lynch]

Key for me is that this remarkable little camera punches above its weight! Why? It's about image quality. It's about getting images with this camera that are far better than other cameras I've purchased.

Ihave an RX100-2. I was concerned that the lens was too short. The magic and mystery inside actually produces images beyond the lens range that are exciting and helpful to me!

Elliott you do an incredible job of explaining why. I am grateful you post here with links that truly help me.