August 29, 2014, 06:13:06 AM

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Topics - Valvebounce

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1
Software & Accessories / Jpeg image sizes?
« on: August 25, 2014, 02:08:44 PM »
Hi Folks.
I was just spending some time getting to grips with DxO. I exported some images to file as Jpegs, they were in the order of 20Mb. I thought I could get away with half size for what I wanted as I have no intention of discarding the raw file!
I see a scale in DxO export settings, Quality 0-100, must be percent right? That is the first assumption that will prove a point! ;D
It obviously isn't percentage, but what is it, from trial and error I find that somewhere in the 96-97 range gives half size files! Please see attached list.


Dxo jpeg sizes by Valvebounce25, on Flickr

The blue highlighted set is from one image, I realised it was a crop when I went to compare the raw file so I repeated the 95-100 set and added the raw for comparison. Can anyone tell me how this scale works, it just seems completely random that a quality of 50/100ths (%? ;D) can give a file size of 1/16th the full size file.
Someone must know the answer to this, please! It's making my brain ache!  (How do you draw a smiley with smoke coming out the ears?) ;D
Thanks in advance for help with this, I know it is not necessary to know the answer but enquiring minds need (like) to know.

Cheers, Graham.

2
EOS Bodies - For Stills / Lens to body pairing
« on: August 19, 2014, 09:53:17 AM »
Hi Folks.
I am going to the Bournemouth air festival, for those that don't know it is a free display with the aircraft flying over the coast, no access to parked aircraft as far as I am aware.
I would like to know the thoughts of those wiser than myself on which lens to put with which body for best image quality?
My thoughts are:-

Bodies                    lenses
7D        With      EF 70-200 f2.8 IS II with or without EF 2X III depending on how close or far the planes are. 
40D      With      Sigma 150-500 f5-6.3 DG OS HSM

Please could I have your thoughts on whether this is right or wrong!
Is it worth having the extra camera just for the extra 100mm?
I am looking to get a Black Rapid Double for carrying both, as it converts neatly to a single too when I only want to carry one body. Thoughts on that?
Anyone been and able to tell me if I will need the 2X III on the 70-200 or not?
Thanks in advance for your input.

Cheers Graham.

3
Software & Accessories / Benbo Tripod?
« on: July 29, 2014, 08:30:07 PM »
Hi Folks.
Anyone used a Benbo Tripod, there is one for sale locally that might be toooo cheap to pass up if they are any good! In fact there are two now at pretty good prices if they are good!
Thanks for any feedback, btw that is Benbo (apparently stands for bent bolt) not Benro which I saw was not too good from recent posts.

Cheers Graham.

4
Software & Accessories / DxO upgrade question.
« on: July 24, 2014, 04:31:29 PM »
Hi Folks.
I have decided to get DxO, I have found version 9.0 genuine licensed boxed product on disc cheaper than the version 9.5 download before the special offer finished.
I would like to know if upgrading from 9.0 to 9.5 is one of the free minor upgrades, if I have to pay it is possibly not worth doing.
Anyone using DxO know the answer please?

Cheers Graham.

5
Canon General / Exif data, does it help, do you need it shown?
« on: July 23, 2014, 07:59:43 PM »
Hi Folks.
I often view images on the forum, almost exclusively on a tablet, some images are hosted on Flickr or similar, so I can see the exif if I click through, others don't have this facility, and I can't view the exif with a right click like I could on a PC.
I know I'm not the only one who asks for camera settings and gear configuration for the shots to be added, I'm just trying to find out why.
Multiple votes are allowed, there are 6 votes allowed for ten questions. For instance I sometimes use my Android tablet but mostly iPad so both are relevant.
Please feel free to add any thoughts in a reply.

Cheers Graham

6
Software & Accessories / DxO Question?
« on: July 19, 2014, 11:30:32 AM »
Hi Folks.
A question about working with DxO? I was wondering if it is possible to create the recipe on a laptop and then process the adjustments using a powerful PC? If I understand correctly the adjustments are stored in a (sidecar?) file needing only limited processor power then on export to file etc the processor power is required.

Cheers Graham.

7
Software & Accessories / A little help with DxO please.
« on: July 12, 2014, 09:53:57 AM »
Hi Folks.
I have been experimenting with DxO and so far I really like it, really impressed with the auto capabilities but I could use a bit of help please.
I unchecked the download new profiles automatically and cannot find where to enable it again. Also I see a part of the installation called database, is this just for profiles, or is this where it stores all of my adjustments? I ask because I have a small Windows drive which I try to keep clean so that a windows reinstall does not have any impact on files I create, therefore I don't have space for a large database and would want photo adjustments on the drive with the photos.
Thank you for any help.

Cheers Graham.

8
Software & Accessories / Post Processing help please.
« on: July 04, 2014, 08:39:07 PM »
Hi Folks.
Some of you with whom I have conversed will know I have thousands of raw images, 7D 40D and a few from 20D and 300D and still only use JPEGs straight out of camera.
I plan to change that, and on that note I set out with DPP and processed a couple of pictures, then converted to JPEG, first question what is the best way to reduce the size of the JPEG? Ideally I'd like to have them about the same size as the out of camera JPEGs, 6 Mb (ish) preferably without reducing the pixel count. I was stunned at finding 20 Mb JPEGs!
I went to post the before and after JPEGs for advice on how badly I'd done when I discovered the size because it wouldn't let me upload to Flickr!
I found save as recipe, is that recipe able to be used to batch process. Is there a setup of the sharpness unsharp mask that will work reliably on most pictures to improve them, leaving me to attend to the few that won't go with a batch process?
As I have my own import and storage regimen I don't need or want software that wants to change my system and have no interest in monthly subscription for software.
That said I see DXO has an offer until mid July and I have downloaded the trial version, how much better is it than DPP for a beginner? Should I just go straight to learning DXO and skip DPP if I can get SWMBO to sanction the expenditure? Just stick to DPP, the older version by the way.
I will confess to currently having no inclination to remove branches from pics, or do much more than crop slightly and straighten horizons after releasing the detail that seems to be locked up in the raw files.
If my current direction is blasphemous to you my apologies, perhaps in the future I can learn to progress to your level, but for now I have accepted I have a PP problem the first step to recovery! ;D
Apologies for the length of post.

Cheers Graham.

9
Canon General / Should we tell them?
« on: June 25, 2014, 08:04:48 PM »
Hi Folks.
I was in France for the D Day commemorations and went to several ceremonies and events, I couldn't help myself, I found myself explaining to people that if they turn to the P setting they wouldn't have to keep pushing the pop up flash back down when taking pictures of things well outside the range of the on board flash and that they could take control of the flash with the release button on the front of the body! Should I have done it, the people did seem to be grateful for the input, a couple even asked for more advice, I recommended coming here rather than trust me! ;D
Should we tell them or just leave them be if they don't ask?

Cheers Graham.

10
Hi Folks.
So to set the scene, we are at a car show, showing our cars. The misses says to bring the camera if you want some pictures of birds, this hedge is teeming with life! Camera is a 7D with a Meike grip.
I have some custom setups so selected one, fire off a few shots, review, decide I want spot metering, press the button, nothing, press other buttons on the top, nothing. Still able to take picture, just locked in to settings. I know I'll use the Q menu, nope nothing except the DOF button and AF on working! Ok drop the main batteries, switch on to drain circuits press shutter button. Switch off batteries back in, power up, same thing. Switch off switch on battery grip, nothing changes. Great I need this in a couple of days! Check lock switch is not set to lock, though I think that only disables rear control wheel cycle the switch on the battery grip on and off a few times, all is back to normal, I breath a big sigh of relief.
So if all the buttons stop functioning and you have a grip, probably especially a third party grip this might help.
For once I'm not in need of help, just trying to give something back!  ;D

Cheers Graham.

11
Technical Support / 20D strange shot limit?
« on: May 05, 2014, 08:49:55 PM »
Hi Folks.

I have an issue with my 20D, I was trying to use it for the first time to take time lapse shots, I intended to make an HD video of a car club event. I know I have better gear in my arsenal, but even the 20D medium jpegs will be big enough for HD, and the suction mount I have has once dropped a camera, it was only in the car, but I don't like the idea of the better camera bouncing in to the footwell so 20D it was.
The problem is it takes on average 25 shots then stops and waits, then will start again. The timer is a Phottix which I have used to drive my 300D all day before I replaced it with the 20D, so I do not suspect the timer. Also the timer is still running the countdown sequence, just the camera doesn't fire, plus if I do stop and restart immediately the camera will continue for 25 more shots.

Please don't hit me with RTFM, I have RTFM'd and I know that at 5fps the buffer will hold about 20 large fine jpegs depending on things like ISO etc. I'm shooting at 1 frame every 3 seconds, the write led stops flashing before the next shot is taken so I don't think it is a buffer depth issue, especially as I have also tried it on medium fine jpeg which should increase the amount of shots the buffer will hold to thirty or more.
The camera is set on full manual (1/640th at f11 ISO 400) including focus which I set between 10m and infinity, AF mode was on 1 shot (dont know if this has any effect with the lens set on MF) and drive mode was on single frame. I did have IS on to help with camera movement on our rough roads, but I just finished taking 200 shots of a blank wall with the camera on a stand on a concrete floor with carpet in our living room, so I think that could eliminate the OS as a factor. Over the 200 shots I counted four lots of 25 shots, two lots of 24 shots and two lots of 26 shots all separated by gaps of at least 20 seconds up to maybe 40 seconds.

Sorry for the length of post but I tried to get all the relevant information included to help with diagnosing this.
Any help or suggestions gratefully received, thanks in advance.

Cheers Graham.


12
Sports / Kayaking
« on: March 30, 2014, 06:43:47 AM »
Hi Folks.
I took these on my first outing with my new 70-200 f2.8L II, I have to say I was completely blown away by its sharpness and focusing speed, ok my only previous reference has been my third party lenses, but wow!
Sorry no shot details, I have posted these from my iPad and it is too painfull trying to get the exif, it is in the images.
Perhaps later when I have time to sit at a pc I will put the details on. Shots straight from camera, shot raw + Ljpeg, thanks to the 7D frame rate and buffer depth with this setting I got what I think are some cool shots.

This young lady saw me getting set up and was very kind and waited for a thumbs up before going!

IMG_4421 by Valvebounce25, on Flickr

This guy practically submerged when he landed!

IMG_4430 by Valvebounce25, on Flickr

Airborne.

IMG_4465 by Valvebounce25, on Flickr

This guy rolled, and is seen recovering.

IMG_4562 by Valvebounce25, on Flickr

These guys just thought it would be fun to jump from the bridge! First shot trying to pan at 9.8m/s!

IMG_4606 by Valvebounce25, on Flickr

Thanks for looking, constructive criticism, suggestions welcome.

Cheers Graham.

13
Canon General / Lens advice for macro?
« on: March 20, 2014, 07:23:39 AM »
Hi Folks.
I tried some macro photography last night, I have a cheap set of extension tubes. I used the thin 1/2" tube with my 17-70 Sigma, I just about managed to focus before the lens touched the flower, by which time I'd blocked out so much light I could barely see it to focus! I'm not looking to buy a lens specifically for macro, but to get the best results fom what I have. Starting point complete novice except for a few test shots using lens reversing rings with little success, and a few shots of a flower last night with acceptable results IMO for a first try with extension tubes.

My question is, of the lenses I have which will be best for macro at a basic level?
Choose from:-
EF 50mm 1.8
EF-S 18-55mm
Sigma 17-70mm
EF-S 17-85mm
Cosina 100-300mm
Sigma 150-500mm and hopefully later this afternoon,
EF 70-200mm 2.8

Cheers Graham.


14
Canon General / Lens advice please, EF 70-200 IS I or II?
« on: March 15, 2014, 06:56:51 AM »
Hi Folks.
Need advice please.
As an amateur is it worth spending the extra money on the 70-200 f2.8 IS II for the improvements over the MK I version.

Who knew wish lists worked, but she just asked me about the lenses I put on it!  :o

Cheers Graham.

15
Technical Support / How many shutter actuations does Reican Focal take?
« on: February 22, 2014, 03:13:07 PM »
Hi Folks.
I'm fed up with pics that are not as sharp as they possibly could be.
I have decided I need to get Reican Focal Pro (pro for zoom over 400mm) just wondered how many shutter actuations it takes on average per lens to get a value, have read all the FAQs I could find and didn't see this info in amongst them.
Not particularly worried about increased shutter count, just curious, better to have a higher count on a camera I'm happy to use than a lower count on one I am fed up with!

Thanks in advance for replies.

Cheers Graham.

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