Is my Canon EF Lens broken? I was given a Canon EF 24-70 2.8L Lens by a friend, who switched to mirrorless, to use on my new Canon EOS Rebel T7 Camera, I checked and this lens is compatible with the T7. I attached the lens to my camera but it only works on f/ 2.8 and any other aperture it gives me an Error 01 code which states its not communicating with the camera, it does…

oly 8-25 f4 vs rf 14-35 f4 vs ef 16-35 f4? i have a em5iii, om1, and r6mk2 and am looking for a ultrawide. anyone have opinions on iq for these lenses? pro of the 8-25 cheaper smaller esp on em5 minor downside f8 dof always, but play to do landscape so not horrid, doubt i would want less light ef glass cheap, decent quality rf more costly but not horrid, orobably better iq? submitt…

Sigma 150-600m contemporary vs Sigma EF 100-400mm? I am looking to upgrade my zoom lens, I shoot wildlife photography so was wondering if anyone had any advice on which one of these I should invest into as I saw someone say the 100-400 is better + cheaper, but my online research suggests the 150-600mm C. Thanks submitted by /u/Such_Consequence9757

EF TOURS–Tipping in Japan EDITED TO ADD: Their website says it is customary to tip and has recommended rates, which is fine. But EF is telling us how much we have to pay and 3 months in advance. They should have just included it in the original booking price. So my daughter’s school is going to Japan for 2 weeks over the summer. We’ve been paying it off for a couple of …

EF tour to France/Germany/Switzerland I don’t know what to do: I am in high school and my friend wants me to go on this trip through EF tours with her and it sounds like a lot of fun but I heard a lot of bad things about the company on research specifically accommodations and food. Is it really that bad? Should I go? I have to pay for half but would be totally up for it if it will b…

Ef canon extenders? I have a 70-200 mm lens,ef,that I use on my canon r,with an adapter,I want a longer lens but can’t afford one at the moment,so thinking of getting a extender for it,but do I get an extender for the EF or the RF?and what mm would that make the 70-200? submitted by /u/DayNo2076

What are the cons of using a 3rd party 70-200 f2.8 EF lens with an R7? Currently in the market to upgrade my current RX100 to a more capable sports photography setup (indoor and outdoor) – I’ve got my eyes on a used R7 for $850 and the Sigma 70-200mm F/2.8 DG OS HSM Sports w/ the EF mount and Canon’s EF-RF adapter. Would the AF performance take a significant hit considering that it’s not a native lens? And if so, …

EF lens on 35mm (FF) body – what focal length? Hey everybody, I have a question. I have a Canon Rebel T6 (digital) that came with the infamous 75-300mm. Obviously labeled 75-300mm on the lens barrel. If I use this lens on my Canon Ti (35mm film), are the markings on the barrel APS-C focal lengths, or FF? I don’t know when the lens was made, and whether the markings were intended for…

OM to EF lens adapter recommendations? Hi there! I have quite a few lenses in the vintage OM system that I like using, and I’ve purchased two different lens adapters to use with my Canon 1DS mk. II. Both adapters, when locked, cause the mirror to stick. But, when I rotate them even slightly, the problem does not persist. Can you give me advice on remedying that situation, or a lens a…

R50 + Wide-Angle Lens for Landscapes: EF with Adapter or RF? submitted by /u/worthofnothing

Are these lens and accessories obsolete with the ef to Rf adaptor? submitted by /u/Localbearexpert

Where to get an 18mm lens that has an EF lock system for canon? I recently purchased a 28mm SLR pentacon lens which has been adapted to have an EF locking system, perfect for my canon DSLR. However, I forgot to account for the crop factor on my 4000D’s sensor. This means to actually have the look of a 28mm I would need a 17/18mm lens. I don’t have a huge budget and just need a lens which would allow me to ha…

Help Needed: Focal Length Metadata Accuracy with EF 24-105mm Lens on EOS RP? Hi everyone, I’m encountering an issue where the focal length metadata in my photos doesn’t seem to reflect the actual settings accurately. This is critical for my work in architectural modelling, where precision is key. Here’s my setup: Camera: Canon EOS RP Lens: EF 24-105mm f/4 (with genuine Canon mount adapter) To test accuracy, I’ve been z…

Ef 17-40mm f4L better than kit? Looking to buy the 17-40mm f4L for my Canon Rebel T7. Watches some less than stellar reviews and not sure if I should buy it. It is the best used lens for my price point…or so I thought. Would it be a worthwhile upgrade to replace my 18-55mm f3.5 is kit lens as a walk around lens. submitted by /u/Fragrant-Mud-542

EF 17-35mm f/2.8 L USM marking? I have two questions. What is the white marking for? What are the filters called that you can insert within the white marking? submitted by /u/rick_jablonski

Sigma EF Lens + EF Adapter on R7: Does It Work? Since Sigma doesn’t offer a large selection of RF APS-C lenses, I wanted to ask about your experiences using Sigma or Tamron EF lenses with an adapter on APS-C mirrorless cameras like the Canon R7. How do these brands compare in terms of autofocus performance and sharpness? If you’ve had success with specific lenses, feel free to share links to …

Best possible third-party EF mount lenses combination under $1200? Like it says, looking for the most bang-for-buck combination of Third party lenses for Canon-1DX Mark-II, under $1200. (This is the specific amount I have saved up for the lenses throughout this year). Use cases are predominantly portraiture (70%). And the occassional Street (15%) and Landscape (15%) as thrown in. submitted by /u/Key-Re…

Lenses for EF mount for landscape/street and portrait? I have recently(6/7months ago) bought a canon Eos 6D and at the time had bought 28-80mm f3.5-5.6 kit lens and the 75-300 f4-5.6 (I know it sucks, but I was a newbie and didn’t research properly) and am looking for an upgrade now. I mostly shoot landscape, street(architecture) and am trying to now get into portrait and astrophotography(Milky Way)…

T2 to EF adapter? Hello, some time ago I bought this adapter to adapt my canon dslr to a celestron telescope, it was okay but now I was wondering if I can adapt vintage lenses to my dslr with this same adapter, I think it is a T2 to ef lens adapter but I’m not sure, also the inside ring comes out as you can see. So my question is, can I adapt native T2 mount lens…

Should I buy an EF 50mm for night photography? Hi, I’ve recently bought my first DSLR – a used 250D + 18-135mm, and in low light it’s…not that good, most photos are really not sharp (I had a 1/60 to 1/100 shutter speed and widest possible aperture). Would a 50mm be good for night/evening photography? I was thinking primarily street photography, also architecture (while keeping in mind that…