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-   -   Blurry: The subject of the image is blurry - Help Needed !! (http://www.railpictures.net/forums/showthread.php?t=18064)

cyberdoctorind 03-01-2018 07:59 AM

Blurry: The subject of the image is blurry - Help Needed !!
 
I have again earned a rejection, this time due to the reason that the subject in the image is blurry.

The rejection photograph is at http://www.railpictures.net/viewreje...51&key=7904266

The High Resolution Photograph is at

https://500px.com/photo/247778751/th...er_id=17826489

where I do see that the image is sharp.

I suspect that resizing the image to 1600x1200 makes the image soft. How do I ensure that the image is sharp even when resized or what makes the screeners decide on the sharpness of the images ?

Thanks in advance

miningcamper1 03-01-2018 09:26 AM

The engine front is fairly sharp on 500px, but not much else.
I would try once more at 1200x800 with additional sharpening.

bigbassloyd 03-01-2018 12:06 PM

Going off the Ballast, it appears your focus point is roughly 60 meters in front of the locomotive. You might be able to selectively sharpen, or see if you have another shot where the nose is closer to the focal point.

Loyd L.

RobJor 03-01-2018 12:17 PM

I was surprised to see 1600 as maximum. I size mine to the "old" max of 1200. As a note the 1600 photos I see do not size themselves on my laptop screen but I have to scroll to see it all. I only see this a few times. 99 pct of the images I click on size themselves correctly to my screen size. I don't know if this is a function of my computer or the site software not handling 1200 and 1600 sized photos the same.

My suggestion would be to reprocess to 1200 wide and see what happens???

Also, if for some reason in the processing you upsized the image(like from 1024 to 1600), you will have a problem.


Bob Jordan

Maybe someone else can look at these two, if you have larger screen the scrolling will not show up.

Your rejection:
http://www.railpictures.net/viewreje...51&key=7904266

Mine, now corrected.
http://www.railpictures.net/viewreje...92&key=1654362

Grewup on the CW 03-01-2018 01:36 PM

I have 27" monitor and the high resolution pic looks better but I agree with Lloyd that the focal point if off, creating the issue it was rejected for. Hopefully you have other frames/shots where the camera focused on more of the scene.

cyberdoctorind 03-01-2018 02:22 PM

Thanks everyone for all your valuable feedback. The resubmitted photograph has now been accepted http://www.railpictures.net/showphotos.php?userid=61989


Quote:

Originally Posted by miningcamper1 (Post 193512)
The engine front is fairly sharp on 500px, but not much else.
I would try once more at 1200x800 with additional sharpening.

Bingo, this worked in my favour. Thank you.

Quote:

Originally Posted by bigbassloyd (Post 193513)
Going off the Ballast, it appears your focus point is roughly 60 meters in front of the locomotive. You might be able to selectively focus, or see if you have another shot where the nose is closer to the focal point.

Loyd L.

I selectively sharpened the image which has brought in the necessary details Viz, the Loco Serial and the type. The Orange decals on a light blue background did make my work difficult. Thank you so much for your suggestion.

Quote:

Originally Posted by RobJor (Post 193514)
I was surprised to see 1600 as maximum. I size mine to the "old" max of 1200. As a note the 1600 photos I see do not size themselves on my laptop screen but I have to scroll to see it all. I only see this a few times. 99 pct of the images I click on size themselves correctly to my screen size. I don't know if this is a function of my computer or the site software not handling 1200 and 1600 sized photos the same.

My suggestion would be to reprocess to 1200 wide and see what happens???

Also, if for some reason in the processing you upsized the image(like from 1024 to 1600), you will have a problem.


Bob Jordan

Maybe someone else can look at these two, if you have larger screen the scrolling will not show up.

Your rejection:
http://www.railpictures.net/viewreje...51&key=7904266

Mine, now corrected.
http://www.railpictures.net/viewreje...92&key=1654362

Fortunately, I shoot in RAW at the highest resolution possible. In this case, it was downsizing. However the main issue that I face with my resizing is most of the images turn out very soft and when I try to bump up the sharpness too much to counteract the softness brings in lot of noise which ultimately leads to rejection. Any tips on downsizing without loss of appreciable quality will be appreciated :).

Quote:

Originally Posted by Grewup on the CW (Post 193515)
I have 27" monitor and the high resolution pic looks better but I agree with Lloyd that the focal point if off, creating the issue it was rejected for. Hopefully you have other frames/shots where the camera focused on more of the scene.

Agree about the focal point. I did have a subsequent shot but I wasn't sure of it being accepted due to the rule of thirds rule.

Grewup on the CW 03-01-2018 02:55 PM

Congrats on getting it on. These forums have really helped me take and process better pics.

KevinM 03-01-2018 03:24 PM

Quote:

Originally Posted by bigbassloyd (Post 193513)
Going off the Ballast, it appears your focus point is roughly 60 meters in front of the locomotive. You might be able to selectively focus, or see if you have another shot where the nose is closer to the focal point.

Loyd L.

Loyd brings up an important point. What sort of focusing scheme are you using? Most cameras these days have all manner of 3D focus tracking and other dynamic modes in which a ton of focus points flash when you release the shutter. I don't trust those modes much at all. I use single-point auto focus, in which I select the focus point, so I can place it somewhere on the locomotive.

cyberdoctorind 03-01-2018 03:47 PM

1 Attachment(s)
Quote:

Originally Posted by KevinM (Post 193518)
Loyd brings up an important point. What sort of focusing scheme are you using? Most cameras these days have all manner of 3D focus tracking and other dynamic modes in which a ton of focus points flash when you release the shutter. I don't trust those modes much at all. I use single-point auto focus, in which I select the focus point, so I can place it somewhere on the locomotive.

Thanks Kevin for the tip, I will switch to Single Point AF going forward. Generally I have this habit of using Zone AF with the points trained on the Loco Face. The current Photograph's AF points are spread through out but I suspect this is not an accurate representation as I do not get so many points on my 100-400 with a 1.4 Extender on.

Attachment 9578

RobJor 03-01-2018 03:51 PM

He is shooting at 420mm at 250th. Then EXIF says +1.4 III., not sure if this is an extender, I'd say this is living at the edge of what is technically possible?. Then not sure if there was cropping. ISO is only 200. Not sure how fast the train is moving.

Camera is an 80D so I'd guess moving up to 400 and doubling the shutter speed would be good idea. Shows pattern metering, so as was pointed out using a point metering and setting point on engine would be good.

DOF is limited, so to me you have DOF, focus, camera shake and motion blur possible all in one image?? so looks pretty good.

Bob

Oh, I do not have a lens over 300mm so just whatever it was worth.

cyberdoctorind 03-01-2018 04:11 PM

1 Attachment(s)
Quote:

Originally Posted by RobJor (Post 193520)
He is shooting at 420mm at 250th. Then EXIF says +1.4 III., not sure if this is an extender, I'd say this is living at the edge of what is technically possible?. Then not sure if there was cropping. ISO is only 200. Not sure how fast the train is moving.

Camera is an 80D so I'd guess moving up to 400 and doubling the shutter speed would be good idea. Shows pattern metering, so as was pointed out using a point metering and setting point on engine would be good.

DOF is limited, so to me you have DOF, focus, camera shake and motion blur possible all in one image?? so looks pretty good.

Bob


Bob, I have been spoilt by the 100-400 II which has a good stabiliser inbuilt, So I tend to shoot as lower Shutter and lower ISO as compared to me using the original 100-400 IS when I used to religiously follow the reciprocal focal length rule which meant that my shutter speeds were consistently high. I have a 1.4 III extender always bolted on to this set up. I agree to your advice on upping the ISO to 400 and doubling the shutter speed.

I probably got away this time because the train was moving very slow as just ahead was it's scheduled stop and the Photo has not been extensively cropped.

Attachment 9579

The above is the representation of the AF points that locked when the shutter was on and I now notice that None of them locked on the face of the engine which probably explains the softness. I will switch to a single AF point and see how it goes along with following the reciprocal rule.

Thanks so much for your valuable feedback.

Ahem RailPictures indeed makes your learn.

KevinM 03-01-2018 07:46 PM

Quote:

Originally Posted by RobJor (Post 193520)
He is shooting at 420mm at 250th. Then EXIF says +1.4 III., not sure if this is an extender, I'd say this is living at the edge of what is technically possible?. Then not sure if there was cropping. ISO is only 200.

Current stabilization technology is really good. I can quite regularly get sharp images with my 80-400 mm f/4.5-5.6G VR at 1/60th, hand-held.....but I would never shoot trains that way. It's nice to know I can get away with it in a pinch, but if it's a shot I can't repeat, I'm jacking the ISO and getting as much shutter speed as I can.

KevinM 03-01-2018 07:49 PM

Quote:

Originally Posted by cyberdoctorind (Post 193521)
Attachment 9579

The above is the representation of the AF points that locked when the shutter was on and I now notice that None of them locked on the face of the engine which probably explains the softness. I will switch to a single AF point and see how it goes along with following the reciprocal rule.

The problem with dynamic autofocus modes is that they can so easily be distracted by something as simple as a large bumble bee flying through the frame. You really have no idea what that camera is going to lock onto. With single-point, you'll get a lot more keepers.

bigbassloyd 03-01-2018 08:22 PM

Quote:

Originally Posted by KevinM (Post 193525)
The problem with dynamic autofocus modes is that they can so easily be distracted by something as simple as a large bumble bee flying through the frame. You really have no idea what that camera is going to lock onto. With single-point, you'll get a lot more keepers.

I trained myself to back button focus and use center point only. It's the rest option in my book.

Loyd L.

JimThias 03-02-2018 12:11 AM

Quote:

Originally Posted by cyberdoctorind (Post 193511)
I have again earned a rejection, this time due to the reason that the subject in the image is blurry.

The rejection photograph is at http://www.railpictures.net/viewreje...51&key=7904266

Sure looks sharper than this:

[photoid=649997]

Dennis A. Livesey 03-02-2018 12:52 AM

When posting a photo in the RP database, this is the form to use:

[photoid=xxxxx]

The x being the number you see in the URL.

Thus:

[photoid=650047]

Now if someone would only tell me how to post images here and make a nice, big embedded image that is not in the database instead of a tiny thumbnail.

:-)

JimThias 03-02-2018 02:31 AM

Quote:

Originally Posted by Dennis A. Livesey (Post 193531)
Now if someone would only tell me how to post images here and make a nice, big embedded image that is not in the database instead of a tiny thumbnail.

Image tags.

JimThias 03-02-2018 02:32 AM

https://scontent-ort2-2.xx.fbcdn.net...98&oe=5B0D717F

miningcamper1 03-02-2018 02:52 AM

Quote:

Originally Posted by JimThias (Post 193534)
Image tags.

OK, but how is that feat actually accomplished? :confused:

Dennis A. Livesey 03-02-2018 04:51 AM

Quote:

Originally Posted by miningcamper1 (Post 193536)
OK, but how is that feat actually accomplished? :confused:

Jim Thias loves being inscrutable.

"Image tags" is not helpful to people such as me who have no idea what they are Jim!

Love ya

:-)

RobJor 03-02-2018 11:06 AM

Quote his post and you will see the tricks of the master!!!

I added in the two capital XX to avoid a repeat

Quote:

Originally Posted by JimThias (Post 193535)
[IMG]XXhttps://scontent-ort2-2.xx.fbcdn.net/v/t31.0-8/28515192_10156044979310833_8202230700754132044_o.j pg?oh=f1f5bc86d64ec421de7238b5841bbe98&oe=5B0D717F[/IMG]

But I don't want to see a lot of hot steam or large photos here!! Smile.

Bob

Dennis A. Livesey 03-02-2018 09:55 PM

OK, the Old Guy figured it out...

Took him years.



https://scontent-iad3-1.xx.fbcdn.net...c5&oe=5B020AEA

cyberdoctorind 03-04-2018 01:43 PM

Quote:

Originally Posted by Grewup on the CW (Post 193517)
Congrats on getting it on. These forums have really helped me take and process better pics.

Thank you. Everyday with RP has become a learning experience for me.

JimThias 03-04-2018 10:27 PM

Quote:

Originally Posted by miningcamper1 (Post 193536)
OK, but how is that feat actually accomplished? :confused:

Quote:

Originally Posted by Dennis A. Livesey (Post 193537)
Jim Thias loves being inscrutable.

"Image tags" is not helpful to people such as me who have no idea what they are Jim!

Love ya


http://s2.quickmeme.com/img/f2/f2155...a561724e3e.jpg


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