iPad Air as a photography aid

I bought an iPad Air and intend to use it to aid me in my photography tasks that I set myself to do and I have a few questions to ask about the Lightning to SD card camera reader.

Does the accessory transfer the original JPEG image from the SD card to the iPad or does it reduce the pixel count of the image during the transfer? I want to be able to transfer the photos I take (at their maximum resolution) to my iPad without having to connect it to a computer to do so.

Does anyone know if the images from the SD card are transferred to the iPad in full resolution, or are the images downscaled?