topic Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens? in EOS DSLR & Mirrorless Cameras

EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Tue, 10 Mar 2020 01:29:18 GMT

Hi!

I demo'd at a photo store the EOS RP, which feels just great in my hands. I demo'd using an adapter and my EF 24 F2.8 mm IS USM lens. One of my questions is:

Why did the photos come out with a blue tint (see photo - only change I made was to decrease the size)?

Color representation per image properties is sRGB.

I am hoping this would be an easy in-camera correction.

Thank you and all the best!

Annie

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

rs-eos — Tue, 10 Mar 2020 02:33:50 GMT

What was the white balance set to? Perhaps it was on say Tungsten (3200K)? For a bright sunny day, the color temp would be closer to 5500K. Lower values would add more and more blue.

If you captured the image in RAW, you can change the white balance in post easily. For example, in Adobe Lightroom, you could use the white balance eye-dropper tool and click on something that suppose to be white or gray. e.g. the snow. Or, manually adjust the color temperature slider.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

MikeSowsun — Tue, 10 Mar 2020 02:46:33 GMT

Do you have any other photos? I think it looks pretty normal for a blue building in the shade under a blue sky.

If you look at just the area to the left, it doesn't look so blue.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Tue, 10 Mar 2020 03:42:31 GMT

Hi,

Thank you!

Here it still seems blueish in the building, the snow (the snow is understandable though since over exposed)

Perhaps it is my montor - I will be upgrading!

Thank you for your help!

Annie

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Tue, 10 Mar 2020 03:47:31 GMT

Thank you!

I do not know what white balance was set to (I only demo'd it quickly and don't have it here) -- and it does not show up on my computer under image properties.

I appreciate the suggestions on editing in Lightroom! That sounds like a great tool! I will likely use Lightroom too once I upgrade my PC -- just using a freeware Photoshop now and haven't used its full functionality.

All the best to you!

Annie

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

Waddizzle — Tue, 10 Mar 2020 06:20:23 GMT

@amatula15 wrote:
Thank you!
I do not know what white balance was set to (I only demo'd it quickly and don't have it here) -- and it does not show up on my computer under image properties.

I appreciate the suggestions on editing in Lightroom! That sounds like a great tool! I will likely use Lightroom too once I upgrade my PC -- just using a freeware Photoshop now and haven't used its full functionality.

All the best to you!
Annie

Lightroom is nice to have, but not mandatory. The Canon DPP4 software can process RAW images, too. The biggest advantage to using Adobe LR is that it can perform lens correction on third party lenses.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Tue, 10 Mar 2020 13:50:10 GMT

"I am hoping this would be an easy in-camera correction."

Annie,

I will suggest the problem is using CS2 and "manual" WB setting. CS2 might be too old to render the RP correctly.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Tue, 10 Mar 2020 13:53:27 GMT

Here is the other pic.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Tue, 10 Mar 2020 13:56:05 GMT

Annie,

BTW, you gain nothing by saving a jpg at level 12. You just add file size. 10 is as high as currently needed.

Go try the RP again and this time set it to Average WB.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Tue, 10 Mar 2020 14:00:24 GMT

"If you look at just the area to the left, it doesn't look so blue."

The WB is off in your pic too. Here is the corrected copy.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

BurnUnit — Thu, 12 Mar 2020 12:23:00 GMT

If you're going to shoot JPEGs only, it will be best to set the camera's white balance for your lighting conditions, as much as possible. Surprisingly to me, the Automatic White Balance seems to do a pretty good job under most shooting conditions.

If you end up getting this camera be sure to at least try shooting in RAW as often as possible. Also be sure to download and install Canon's free RAW processing software, DPP4, and then experiment a bit with adjusting white balance (as well as other settings) after the fact. You should be able to easily make some really impressive improvements to images like the blue-tinged photo above.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

rs-eos — Tue, 10 Mar 2020 19:41:22 GMT

Excellent advice on shooting RAW above. Personally, I capture both RAW and JPEG (and then across two cards). This gives you an instant backup.

For those cameras with a single card slot, should the RAW file get corrupt, you have the JPEG as its backup.

Having said all that, knock on wood, I haven't experienced any corruption yet.

Finally, there are specific scenarios where only shooting JPEG is proper. But for the most part, go for RAW.

Edit: Forgot to add... I rarely use AWB (Auto White Balance), but when I did play around with it, it did do a decent job. If I think about what I do, it's about an equal split amongst using the presents (e.g. Flash, Tungsten, Shade), dialing in an exact Kelvin value, or setting up a custom white balance.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Wed, 11 Mar 2020 14:46:19 GMT

"...the Automatic White Balance seems to do a pretty good job under most shooting conditions."

I agree! I have not moved the WB setting off of Average WB for a very long, long time. Of course I shoot Raw exclusively. In my world I see no valid reason to ever shoot jpg anymore. The conversion is so seamless.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Wed, 11 Mar 2020 03:12:14 GMT

Ebiggs, that is so good to know it is seamless 🙂 Thank you!

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Wed, 11 Mar 2020 03:15:11 GMT

Thank you!
I have not shot raw yet, but the replies to this thread have me excited about it! I am glad to hear working with raw is not difficult!
All the best!

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Wed, 11 Mar 2020 03:17:52 GMT

Thank you! That is great to know about Canon's Raw processing software!!! I am sure I will be using it and hoping to really enjoy it!

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Wed, 11 Mar 2020 14:48:10 GMT

Are you really using CS2? Did you really set the WB to manual?

I doubt CS2 will handle any new camera model correctly or at all.

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

amatula15 — Thu, 12 Mar 2020 04:28:46 GMT

Hi Ebiggs,
You asked :"Are you really using CS2? Did you really set the WB to manual?"

What is CS2? I used a freeware version of Photoshop to decrease the size of the image so I could post here - but no other adjustments were made.

I demo'd the camera at a camera shop so have no idea of the settings. I wanted to see how it felt and shot, knowing the quick demo would not give me all I would love to know about the camera, but yet better than no demo -- or so I think sometimes! At other times, not knowing nor using the full capabilities and features of the camera makes it harder to make a decision after having demo'd.

I realize I have much to learn yet in DSLR photography. That factor makes it more difficult to review camera specs and make a decision based solely on those.

Thank you!
Annie

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

ebiggs1 — Thu, 12 Mar 2020 14:39:58 GMT

"...better than no demo -- or so I think sometimes! "

Not really! Can't be very good if it doesn't tell you or show you what the camera is capable of. It is actually worse than buying blindly if it shows a poor photo.

The EXIF data from your sample indicates CS2 which is a very old version of PS. Perhaps that is what the freeware version uses as a software. The WB indicated a setting of 'manual'. I don't understand that!

My thoughts is the adapter and lens are not the issue here and the settings on the camera is. I would ignore what you saw.

If you try again perhaps you might do a reset first. WHo knows what somebody else might have set?

Re: EOS RP - why blue tint using the adapter and EF 24 F2.8 mm IS USM lens?

BurnUnit — Thu, 12 Mar 2020 17:14:29 GMT

@amatula15 wrote:
Hi Ebiggs,
You asked :"Are you really using CS2? Did you really set the WB to manual?"

What is CS2? I used a freeware version of Photoshop to decrease the size of the image so I could post here - but no other adjustments were made.

If you're not familiar with shooting with a DSLR and working with RAW files this may blow your mind.

Are you aware of all the EXIF data that's attached to digital image files? It provides a ton of shooting and editing information that's very helpful when you're trying to troubleshoot why an image maybe doesn't come out the way you expected.

When posting images here, or on similar sites, it's best to leave the EXIF info attached if possible.

Here's the EXIF data (somewhat edited to save space) from the first image you posted.

IPTC

Record Version = 2

IPTC Core (Adobe XMP)

Expand All / Collapse All / Show/Hide XMP Source / Show/Hide XMP Legend

xpacket = begin="ï»¿" id="W5M0MpCehiHzreSzNTczkc9d"
x:xmpmeta
xpacket = end="w"

EXIF IFD0

Camera Make {0x010F} = Canon
Camera Model {0x0110} = Canon EOS RP
Picture Orientation {0x0112} = normal (1)
X-Resolution {0x011A} = 720000/10000 ===> 72
Y-Resolution {0x011B} = 720000/10000 ===> 72
X/Y-Resolution Unit {0x0128} = inch (2)
Software / Firmware Version {0x0131} = Adobe Photoshop CS2 Windows
Last Modified Date/Time {0x0132} = 2020:03:09 19:27:18
Y/Cb/Cr Positioning (Subsampling) {0x0213} = co-sited / datum point (2)

EXIF Sub IFD

Exposure Time (1 / Shutter Speed) {0x829A} = 1/800 second ===> 0.00125 second
Lens F-Number / F-Stop {0x829D} = 10/1 ===> ƒ/10
Exposure Program {0x8822} = normal program (2)
ISO Speed Ratings {0x8827} = 320
Sensitivity Type {0x8830} = recommended exposure index (REI) (2)
Recommended Exposure Index {0x8832} = 320
EXIF Version {0x9000} = 0231
Original Date/Time {0x9003} = 2020:02:08 13:07:45
Digitization Date/Time {0x9004} = 2020:02:08 13:07:45
Unknown tag, Tagnum 0x9010 {0x9010} = data ===> -07:00
Unknown tag, Tagnum 0x9011 {0x9011} = data ===> -07:00
Unknown tag, Tagnum 0x9012 {0x9012} = data ===> -07:00
Components Configuration {0x9101} = 0x01,0x02,0x03,0x00 / YCbCr
Shutter Speed Value (APEX) {0x9201} = 630784/65536
Shutter Speed (Exposure Time) = 1/789.61 second
Aperture Value (APEX) {0x9202} = 434176/65536
Aperture = ƒ/9.93
Exposure Bias (EV) {0x9204} = 0/1 ===> 0
Metering Mode {0x9207} = pattern / multi-segment (5)
Flash {0x9209} = n/a (0)
Focal Length {0x920A} = 24/1 mm ===> 24 mm
User Comment (Hex) {0x9286} = 0x00,0x00,...
User Comment Character Code = not defined
Last Modified Subsecond Time {0x9290} = 48
Original Subsecond Time {0x9291} = 48
Digitized Subsecond Time {0x9292} = 48
FlashPix Version {0xA000} = 0100
Colour Space {0xA001} = sRGB (1)
Image Width {0xA002} = 2000 pixels
Image Height {0xA003} = 1331 pixels
Focal Plane X-Resolution {0xA20E} = 4160000/1415 ===> 2939.93
Focal Plane Y-Resolution {0xA20F} = 2768000/943 ===> 2935.31
Focal Plane X/Y-Resolution Unit {0xA210} = inch (2)
Custom Rendered {0xA401} = normal process (0)
Exposure Mode {0xA402} = auto exposure (0)
White Balance {0xA403} = manual (1)
Scene Capture Type {0xA406} = standard (0)
Camera Owner Name {0xA430} =
Body Serial Number {0xA431} = 052022002960
Lens Specification {0xA432} = 24-24mm F0-0
Lens Model {0xA434} = EF24mm f/2.8 IS USM
Lens Serial Number {0xA435} = 0000001baf

EXIF IFD1

Compression {0x0103} = JPEG compression (6)
X-Resolution {0x011A} = 72/1 ===> 72
Y-Resolution {0x011B} = 72/1 ===> 72
X/Y-Resolution Unit {0x0128} = inch (2)
Embedded thumbnail image:

EXIF Interoperability IFD

Interoperability Index {0x0001} = R98
Interoperability Version {0x0002} = 0100

EXIF GPS IFD

GPS Version ID {0x00} = 0x02,0x03,0x00,0x00

******************************************************

According to this abridged info on ebiggs1's edited version of the same pic, he did his work in Photoshop CS6.

IPTC

Coded Character Set = 27, 37, 71
Record Version = 2
Date Created = 2020/02/08
Time Created = 13:07:45-07:00

IPTC Core (Adobe XMP)

Expand All / Collapse All / Show/Hide XMP Source / Show/Hide XMP Legend

xpacket = begin="ï»¿" id="W5M0MpCehiHzreSzNTczkc9d"
x:xmpmeta
xpacket = end="w"

EXIF IFD0

Image Width {0x0100} = 2000 pixels
Image Length {0x0101} = 1331 pixels
Bits Per Sample {0x0102} = 8,8,8
Photometric Interpretation {0x0106} = RGB (2)
Camera Make {0x010F} = Canon
Camera Model {0x0110} = Canon EOS RP
Picture Orientation {0x0112} = normal (1)
Samples Per Pixel {0x0115} = 3
X-Resolution {0x011A} = 720000/10000 ===> 72
Y-Resolution {0x011B} = 720000/10000 ===> 72
X/Y-Resolution Unit {0x0128} = inch (2)
Software / Firmware Version {0x0131} = Adobe Photoshop CS6 (Windows)
Last Modified Date/Time {0x0132} = 2020:03:10 08:49:02
Y/Cb/Cr Positioning (Subsampling) {0x0213} = co-sited / datum point (2)

(Reason For Edit: This post obvoiusly needed a bit more trimming)