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Showing posts with label Servo. Show all posts
Showing posts with label Servo. Show all posts

Thursday, November 1, 2012

Canon EOS M Video Test

The new Canon EOS M maybe a day late and a dollar short in the competitive mirrorless camera market. Panasonic, Sony and Leica, to name a few, have dominated the compact, no real viewfinder and interchangeable lens market for hungry consumers for the past several shopping seasons. What does the Canon EOS M have to offer this late in the game? For a retail price of $800, the 18 megapixel Canon EOS M features a very large APS-C sensor with DIGIC V processor, like in the Canon EOS Rebel T4i/650D. With a large CMOS sensor in a compact form factor comes a new interchangeable EF-M lens system as well. The EF-M 22mm f/2 STM lens is the standard kit lens with the Canon EOS M. As a 35mm focal length equivalent on a crop sensor, the new EF-M lens is fast and quick due to the f/2 aperture and stepper motor. Be patient, I will have more ISO and still image quality tests in my upcoming Canon EOS M Verdict and Video Review. Enough with the basics! The Canon EOS M features full manual exposure and audio control for Full HD 1080p glorious video. The full manual control is partly touchscreen because of the smaller landscape of the mirrorless form factor but that gimmicky feature looks bad only on paper. For such a compact camera, the touchscreen is quite useful and handy at times. For audio inputs, the Canon EOS M has built in stereo microphones and a mic jack for an external microphone. Now for my actual Canon EOS M Video Test... Now for the video good stuff! The video quality is impressive, especially with the new EF-M 22mm f/2 STM lens. The color, sharpness and that dreamy "bokeh" in the video footage makes this a formidable contender in the mirrorless market. You basically get Canon Rebel T4i/650D video quality in half the size. The full manual control for exposure and audio is a bonus for the budget filmmaker. There will be soon a EF-M to EF lens mount adapter for the Canon EOS M so I can mount all my "L" glass like the big boys. Just like the T4i/650D and 5D Mark III, the Canon EOS M has total video capture time of 29 minute and 59 seconds. My kid's Christmas Recital can last longer than 12 minutes. Hooray...I think? Now for my initial bad stuff! I am a big fan of manual focus during video capture. My experienced eyes and precise fingers can roll that lens barrel with precision better than most machines. The focus throw on the new Canon EF-M 22mm f/2 STM lens is average but very smooth to focus manually. The only problem is the EF-M lenses need power for AF and MF. Since there is no external AF/MF switch on EF-M lenses, you have to go into the menu to select the focus option. Not very user friendly when you are switching back and forth from still pictures with AF and shooting movies with manual focus. The other pink elephant in the room is the infamous Hybrid AF Servo during video capture. Just like the Canon Rebel T4i/650D, the continuous AF during video recording was a big disappointment. My Canon EOS M Hybrid AF Video Test is coming soon to give you more details. Patience! For all those Apple Final Cut Pro fanboys! Just like the modified .plist of the Canon E-1 Movie plugin of the Canon Rebel T4i/650D, I hacked the .plist again for the new Canon EOS M. With this .plist modification, you can automatically log and transfer your Canon EOS M .mov files to AppleProRes422 instead of manually transcoding. Just read the above .plist and follow my links in my last Canon EOS Rebel T4i/650D Video Test for detailed instructions. The Canon EOS M is a mighty new contender in the mirrorless market. My dream Powershot G1X and the new Powershot G15 did not feature full manual exposure and audio control to my disappointment. I think the Canon marketing department has something up their sleeves for the moment. Now, if they only lower the Canon EOS M price point like the other mirrorless brands... Stay updated for my full Canon EOS M Verdict and Video Review by Becoming a Fan on my Facebook Fan Page and following me on Twitter!

***Major Update***

My Canon EOS M Verdict and Video Review is complete and posted with a full gallery of more pictures and videos like this Rokinon 8mm T3.8 Fisheye Cine version lens. Click here.

Thursday, June 21, 2012

Canon Rebel T4i and EF 40mm f/2.8 STM Hybrid AF Video Test



Canon's latest flagship entry level Rebel, the T4i/650D, touts a new Hybrid auto focusing system for video and the first LCD touchscreen for Canon DSLR's. Also introduced is the long awaited Canon EF 40mm f/2.8 STM pancake lens. Otherwise known as the "shorty forty", this very slim profile prime lens has an affordable retail price of $199.



The new Hybrid AF system of the T4i/650D allows objects or people to be continuously tracked in focus during video recording. With Canon's new EF STM or stepper motor lenses, the Hybrid AF system allows smoother lens focusing when compared to USM and non USM EF lenses. The new Hybrid AF system and the LCD touchscreen of the T4i/650D work in conjunction with STM lenses such as the new Canon EF 40mm f/2.8 STM pancake lens for smooth focus tracking of subjects during video capture.



I wanted to see for myself Canon's revolutionary hybrid focusing system. As a veteran television news photographer, I always manually focus lenses on my video cameras. Just the thought of horrible focus hunting and motor noise gives me nightmares. So how does Canon's Hybrid AF system stack up? Watch my 1080p video above shot with the Canon EOS Rebel T4i/650D and the EF 40mm f/2.8 STM lens.



My Canon Hybrid AF conclusion? The Servo AF only works well with subjects and people moving at a toddler's pace. Anything faster than crawling, the Hybrid AF does not keep up with fast moving people or objects. My 15 month old baby daughter just started to walk recently and the Canon T4i/650D paired with the EF 40mm f/2.8 STM pancake lens kept her in focus most of the time. Before the test, my expectations were not too high for this T4i or any HD DSLR. Disappointed with focus tracking of normal everyday people or object movements, I was quite surprised at the quiet and smooth focus of the new STM or stepper motor. Say goodbye to noisy, ratchety and jarring focus movement of previous EF USM and non USM lenses. Canon's next step is to match the AF system of conventional camcorders out in the digital video market. Patience is a virtue!



While we are on the topic of DSLR video, the Canon Rebel T4i/650D replaces the 16 month old Canon Rebel T3i/600D with added and removed DSLR video functions. The Canon Rebel T4i/650D most notably does not have 1080p 3x to 10x Digital Zoom video capture and the "AF Quick" mode for video focusing. What happened? My only guess is Canon's marketing division got hold of the R&D department. The Canon Rebel lineup is marketed to the entry level and novice DSLR demographic, most notably soccer mom's. I can't blame Canon for this because all I see at theme parks and zoos during travels with my own family are inexpensive DSLR's strapped around parental necks. New parents mean "green" full auto mode on the control dial 24/7! This includes auto focus with shooting video, as well.



Let us take a break about video and focus on the great Canon EF 40mm f/2.8 STM lens image quality. This pancake lens is an amazing and must have for your camera bag. It is affordable, portable and super sharp for crop and full frame sensors. The color rendition of this lens is just about "L" glass quality. The above image was shot with the "shorty forty" and the Canon EOS 5D Mark III at ISO 3200. Focus was dead on and the image quality was outstanding for $199. This "shorty forty" is a no brainer!



I will have more video tests with the pancake lens paired with the Canon 5D Mark III and Canon 1D Mark IV shortly. I am working diligently capturing, transcoding and editing video footage to share the knowledge.



Stay updated with my upcoming Canon EOS Rebel T4i/650D Verdict and Video Review by Becoming a Fan on my Facebook Fan Page and following me on Twitter!








***Major Update***


I just posted my Canon EOS Rebel T4i/650D Verdict and Video Test here.

Tuesday, June 19, 2012

Canon EOS Rebel T4i/650D Video Test



Almost 16 months after the venerable Canon Rebel T3i/600D hit store shelves, Canon unleashed a new Canon Rebel T4i/650D to the entry level DSLR market for a retail price of $849 for body only. The Canon EOS Rebel T4i/650D is now touted as Canon's flagship to its Rebel lineup. Although it shares the same 18 megapixel CMOS sensor as its predecessors, the Canon Rebel T4i/650D features a DIGIC V processor to handle the faster 5fps shutter rate, a new Hybrid AF system to work in conjunction with Canon STM (stepper motor) lenses for video, a more sensitive 9 point AF like the Canon 60D and the first the touchscreen control for Canon DSLR's. Of course, there is much more to list but that will have to wait for my upcoming Canon EOS Rebel T4i/650D full review. Patience!



As soon as I picked up my Canon Rebel T4i/650D from my friends at North Tampa Photography, I hit the ground running by capturing some video to evaluate image quality and the new touchscreen feature on the swivel LCD. The video above was shot at 1080p with the Canon EOS Rebel T4i/650D at 29.97fps. I edited the video using Final Cut Pro 6.0.6 using a modified Canon E-1 Movie Plugin to transcode the h264 video files to AppleProRes422. I used Compressor to export a 470mb h264 video file. I paired the T4i/650D with the Canon EF 35mm f/1.4L lens and captured audio with the Rode VideoMic shotgun microphone.



Now for my brief video evaluation of the T4i/650D! First the good stuff... The extra indent on the power switch for movie mode makes the transition easier to capture video without turning the mode dial almost a full 360 degrees. The built in camera microphone is now stereo and placed above the viewfinder. Hesitant at first for change, the touchscreen LCD controls are surprisingly good and practical for recording video. With a touch of the Q (quick menu) button, you have touch control of all major functions including aperture, shutter, ISO, focus point, focus magnification and much more to list. The touchscreen is quite handy especially when choosing focus point and magnifying digitally for critical focus. No more fumbling with control dials and menus anymore. Total video recording time is now up to 29 minutes and 59 seconds. Just like the Canon 5D Mark III, a new continuous video file is created when the 4gb file limit is reached. The new Hybrid AF system for Servo AF during video capture looks very promising and I will have a full review and Hybrid AF video test shortly.



Now the bad stuff...Gone are the days of 1080p 3x to 10x digital zoom video capture like in the previous Canon Rebel T3i/600D. Canon completely removed this useful feature adding that extra reach for distant subjects like in my Supermoon video. Next problem is the removal of the AF Quick mode option in movie mode. I found the AF system of the stills mode is much more accurate and "quick" than the new Flexizone single focus point. Habits are just too hard to break! As an added note, the Movie Servo AF is enabled by default in movie mode. It has to be disabled because the AF will be constantly hunting for focus during video capture. Another brief critical issue with the AF is switching between stills mode and movie mode. If you are in AF Quick mode in Live Mode for stills, your selected setting in movie mode for AF will be set to the AF face tracking mode by default. Confusing? This maybe corrected in some future firmware fix, hopefully. As of now, that briefly wraps up my initial positive and negative video aspects of the new Canon Rebel T4i/650D. Everybody will have to wait for my full review and in depth look into the Hybrid AF system with Canon STM lenses.



Look familiar? This is my modified .plist for the Canon E-1 Movie Plugin v1.3 to make the Canon Rebel T4i compatible with the Log and Transfer feature of Final Cut Pro. All of the other higher end Canon DSLR's can quickly and easily transcode h264 video files to AppleProRes422 for smooth non linear editing except the Rebel series. I fix that problem easily like the previous Rebels here. Be warned! Follow instruction carefully in that link and click on the picture above to view the .plist modification for the Canon Rebel T4i/650D. Good Luck!



There will be more to come especially with the new Hybrid AF tracking system with Canon STM lenses including the new Canon EF 40mm f/2.8 STM pancake lens or "shorty forty".



This concludes my first of many Canon Rebel T4i/650D Video Tests. Some extra tidbits I have to mention regarding video. Like the Canon 5D Mark III during video recording, the HDMI output is a cropped 16x9 version that is displayed with or without camera information. This sure beats a 4:3 480p video output like the previous Rebels! Just like the previous Canon Rebel T3i, the new T4i keeps the manual audio control for video and the added video resolution of 720p at 59.97fps as well.



Stay updated for my upcoming Canon EOS Rebel T4i Verdict and Video Review by Becoming a Fan on my Facebook Fan Page and following me on Twitter!










***MAJOR UPDATE***


I posted a new Canon Rebel T4i and EF 40mm f/2.8 STM pancake lens Video Test here
. See the amazing new "shorty forty" especially when paired with the T4i/650D.

***Major Update #2***

I just posted a new Canon EOS Rebel T4i Verdict and Video Test here.

Monday, March 8, 2010

Canon EOS 1D Mark IV Autofocus Test



I have a renewed respect for sports photographers. It has been a while since I shot a sporting event, especially a soccer game, and realized there is a high level of skill and difficulty. Enter my daughter's first soccer game with one day of practice. Adorable yet a hair pulling affair for my photographic acquisition.



First and foremost the most difficult task of sports photography is keeping the focus point tracking the player's face in AI Servo mode. It was almost like an elementary game of keep the red dot on your opponent to win the prize.

Anticipating the player's movement is the second most difficult thing to predict. My directive was to get the player and the ball coming towards the camera's direction. Virtually impossible with soccer because the ball is going in every direction. One second the ball is headed your direction and then a quick turn to the left and right.
I felt a headache approaching from my frustration to get the perfect shots.

The third most difficult task is to compose your shot with the player and ball in the same frame while in motion and making sure the red focus point is on their face.
You could say this step is a combination of the first two hard things to accomplish when shooting sports. I have many more of my daughter's games to practice this task. I forgot to mention the added obstacle of obstacles. If you did not have anything more to worry about shooting soccer, the blurry object walks into your shot. Lo and behold, it is one of the many coaches following the game on the field. This could very well be the fourth step in my list, but I will proceed with my Auto Focus evaluation.

Life would be simple if everything moved laterally, but that is not the case. The instant the red focus point tracks off the face while composing the player,the ball and the surroundings everything goes blurry and I miss the shot. It is a constant battle with all of these elements fighting each other.



My feeble attempt at sports photography is overwhelmed by the AF system of the Canon EOS 1D Mark IV. I am no Rob Galbraith. Nor do I have the plethora of Big White Lenses at my disposal. All I used on the shoot were my Canon EF 70-200 f2.8 IS and EF 300mm f4 IS lenses. I enabled the surrounding focus points(C.Fn III-8-2)to maintain the broadest reach of the main focus point and have a higher keeper rate of in focus pictures. Call this a realistic and practical evaulation of the Canon EOS 1D Mark IV auto focus.

You can compare my AF results in my daughter's soccer gallery.



My daughter's youth soccer game is not the World Cup or the Summer Olympics, by no means. My sports photography will get only better with practice and determination. My daughter out in the soccer field having fun kicking the ball outweighs any "hair pulling" frustration I have with sports photography.
There will be a second round of AF tests during my daughter's second game next weekend and by then,I will have more practice. This AF evaluation will continue in my next post with even more AI Servo examples.