UPDATE October 2024
At 10,000 clicks, I had no issues with dust on the sensor. All of the following still apply, except perhaps for the price. I add that the performance is very good at 25,000 ISO.
UPDATE May 2024 with 9,000+ clicks NO PROBLEMS all of the following still apply. Explanation: the review regarding the weight is very good for its category and for my non-kit lens 18-200 but it is not lightweight like the smaller category. The review of photo quality pertains to the above lens. I also tried the kit lens 18-135 with the same quality. Both lenses have slight distortion in extreme situations that are not bothersome.
UPDATE Oct 2022. After 4900 clicks and with "gentle" handling, all of the above applies + the sensor did not require manual cleaning intervention. I have set it to clean at every power-up of the camera.
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January 2022
Purchased from a store outside of skroutz in September 2020 / today 3,500 clicks
The Canon 90D is a versatile camera, with a very fast processor that responds exceptionally well at 33 mp, and I think it is aimed at those who would desire a full frame but cannot bear the weight of the cost of the camera and lens changes.
I do not deal with video, and therefore the opinion I express concerns photography. The camera has all the controls on the right hand, on the back or on the top, and after relatively little use, you can use them without taking your eye off the viewfinder. The indications you see from the viewfinder help with this. The only switch that is on the left hand is the on/off. There are actions that can be performed from multiple controls (e.g., moving the focus point).
The camera has a significant problem for me that I did not have with other DSLRs since 2005. The change of the focus point. In previous DSLRs (Nikon D70, D7000), by activating the focus/shutter button, you would move the focus point(s) with another switch. In the 90D, after activating the focus button, you must press another button to activate or change the focus point/area or the selection of the number of focus points, which you must move with a third switch. A camera like this with a very fast processor and high speeds (10fps) makes the above problem significantly delay the shot.
The camera's menu is logically structured and user-friendly and is easily learned with use.
The photo editing software, from the little I worked with it, seems good, but for processing a large volume of photos, I found it cumbersome, and therefore I preferred the software I was using before. The accompanying editing software also shows the focus points.
The dimensions of the photos are 6960 x 4640 pixels (163 x 245 cm) with file sizes ranging from 2,500 kb to 10,000 kb (In raw ~x3). There are times when the computer (i7 4th generation with 8Gb memory) is slow to respond to some edits (e.g., rotation) due to the size of the photos.
Of course, the photos take up more space on the external storage medium in the main and backup.
The quality of the photo now relates to the lens and the size of the photo you see or want to use. I used the lens (18-135mm f/3.5-5.6 IS USM) that Canon provides in the kit that I inherited from a Canon 750D. I also bought a used Tamron 18-200mm f/3.5-6.3 Di II. Both lenses are aspherical and have minimal distortion that usually doesn't bother. I view the photos on a 23-inch screen, and the sharpness of 33mp, on a screen smaller than the natural size of the photo and the photo filling the screen without cropping, is very good and doesn't bother (an experienced eye will notice in some cases that the sharpness is not very good, but this is corrected by the computer). For printing, I print in A3 or A4 on paper with a laser printer and laminate it, or I print on canvas in the same size. Thus, any sharpness imperfections are not visible in the print. The sharpness also depends on the aperture and the number of focus points. For large prints, another lens may be needed, and the opinion of the printing shop is important.
I found it difficult to get used to the colors, as I was coming from the more vibrant colors of Nikon. However, they are very good and more natural. In cases of difficult lighting, it produces a slight pink hue. The detail and color writing in photos simultaneously with shadow and strong lighting is better than in the past.
The battery has a long duration; I haven't drained it, I've recharged it at 700+ clicks over many days of shooting and with quite a few (how many?) clicks ahead of it. After each use, I remove it from the body. However, I noticed that the battery drains after long periods of inactivity outside the body. It definitely lasts without charging during rather intense use for a 5-6 day trip. I would get a second battery if I wanted the security of not running out during a full coverage event.
The single storage slot will only concern those who use jpg and raw files simultaneously or even video. The problem is solved with a large storage card or a second card.
Among the strong points of the camera is the iso 25,600, which allows you to click without a tripod. There is noise reduction setting, and the final result is very, very good.
Another strong point of the camera is the tilting screen.
The weight of the camera body is the lowest in its category and only concerns those coming from a lower category.
The current price of €1,300.00 for the camera is high. I got it as a body for €1,100.00 on a promotional price in September 2000, and with the lens (18-135mm f/3.5-5.6 IS USM) that Canon also offered, it cost me a total of €1,400.00 compared to €1,730.00, which is its current price.
It would be desirable to have built-in GPS. I haven't tried the wifi yet as it didn't have practical interest for me.
In summary: A fast camera with high and good iso, precise, fast, and silent focusing, very good sharpness for its lens, good colors, the tilting screen is very useful, and easy to use with its buttons. Its major downside is the change of focus points and positions that delays the shot, and its price. Although the camera is fast, the problem of changing focus points and the many settings make it more useful for static subjects rather than for action or wildlife. I would say that the eos 750d I had, although with fewer settings, did not lose speed in capturing my subject.
A second card and built-in GPS would be desirable.
I would recommend it to people (like me) who want to crop parts of a subject photo that they cannot get close to (isolation of a finial or detail). The attached photos were taken without a tripod and without flash, and have not been processed except for resizing and pasting the shooting information. Photos 2 and 4 are crops of the subjects of 1 and 3 respectively. All photos are sized as a percentage of the original so that 2 and 4 have the same aspect ratio as 1 and 3 of the originals. Photos 1 and 2 differ significantly in terms of aperture. The 5th is a night shot at 25600 iso with no grain in the blacks. More photos (some possibly with some processing) >>> https://zafeiras-photos.blogspot.com/search/label/*%20Canon%20EOS%2090D