The D90 fits well between Nikon's entry-level and professional DSLR models. Packed with 12.3-megapixel DX-format CMOS imaging sensor, 3-inch high resolution LCD and built-in image sensor cleaning, the D90 is a feature-rich camera which surpasses its predecessor D80. It's world's first DSLR with an HD movie mode and records exceptional 24 fps movie clips with sound at up to 720p HD in motion JPEG format. The camera gives utmost flexibility in terms of storage space to a photographer as it uses SD/SDHC card. The SD cards are highly popular as they are capable of storing vast amount of data. But they have their own limitations as the data can become inaccessible in cases of card corruption. 'Delete all' button, if pressed accidentally, can also unleash misery by deleting the data – pictures and videos in one second. Therefore to keep these problems at bay, one is recommended to maintain a backup. However, if the disaster strikes in absence of a valid backup, there is no need to panic as a camera recovery utility can get back the lost data.

As a practical case, while viewing the photos on your Nikon D90, if you accidentally pressed 'Delete All' button, don't lose heart. You'll be pleased to know that the technology has made it very easy to recover pictures even if they have got deleted from the memory card.

Your Nikon D90 uses a SD card which stores photos and videos just like a hard drive does. In case of accidental or unintentional deletion, the SD card marks the space 'available' for another file. The content of the file, however, remains on the card. Until and unless some other file occupies the 'available' space, the previous file still exists and can be recovered. Therefore, in order to ensure 100 per cent recovery, one must act swiftly and employ a camera recovery software.

The D90 photos are worth a digital camera recovery utility as it comes really handy in unfortunate times such as accidental or unintentional formatting/deletion or damage to card's file system. These utilities are equipped with simple graphical user interface which makes the recovery an easy task for a novice user. Moreover, you can blindly trust a camera recovery software as these are read-only applications which are not meant to alter the original content.

Mac camera recovery is a well-acknowledged product which recovers lost/deleted/formatted photos and other multimedia files from a range of storage media like memory cards, memory sticks, hard drives, USBs and other removable media. This application supports all camera brands (Nikon, Sigma, Canon, Sony etc) and photo formats (JPEG, TIF, RAW, Exif, TIFF etc).